TW201918741A - Optical imaging lens - Google Patents

Abstract

An optical imaging lens including a first lens element to a sixth lens element arranged in sequence from an object side to an image side along an optical axis is provided. Each of the first lens element to the sixth lens element includes an object-side surface and an image-side surface. The first lens element is arranged to be a lens element having refracting power in a first order from the object side to the image side. The second lens element is arranged to be a lens element having refracting power in a second order from the object side to the image side. The third lens element is arranged to be a lens element having refracting power in a third order from the object side to the image side. The fourth lens element is arranged to be a lens element having refracting power in a first order from an aperture to the image side. The fifth lens element is arranged to be a lens element having refracting power in a second order from the aperture to the image side. The sixth lens element is arranged to be a lens element having refracting power in a third order from the aperture to the image side.

Description

Optical imaging lens

The present invention generally relates to an optical imaging lens. Specifically, the present invention particularly relates to an optical imaging lens mainly used for capturing images and video, and can be applied to portable electronic products, such as mobile phones, cameras, tablets, and personal digital assistants (Personal Digital Assistant). , PDA), car camera, virtual reality tracker (Virtual Reality (VR) Tracker) and other devices.

The specifications of consumer electronics are changing with each passing day. The pursuit of light and short steps has not slowed down. Therefore, the key components of electronic products such as optical lenses must be continuously improved in order to meet the needs of consumers. In addition to imaging quality and volume, the most important feature of optical lenses is the increasing importance of the field of view (FOV). With the advancement of image sensing technology, the application of optical lens is not limited to shooting images and video, but also environmental monitoring, driving record photography, etc., so in response to the driving environment or the lack of light environment and consumer image quality, etc. In the field of optical lens design, in addition to pursuing lens thinning, it is also necessary to take into account lens imaging quality and performance.

In addition, the difference in ambient temperature of the electronic device may cause changes in the back focal length of the optical lens system under different use environments, thereby affecting the imaging quality. Therefore, it is desirable that the back focus variation of the lens group is not easily affected by the temperature change.

In view of the above problems, in addition to good image quality, the lens has a low back focal length variation and a raised viewing angle at different ambient temperatures, which are the focus of improvement in the design of the field. However, the design of the optical lens is not simply to reduce the size of the lens with good imaging quality to produce an optical lens with both image quality and miniaturization. The design process involves not only the material properties, but also the production and assembly yield. The actual problem of the face.

On the other hand, the application range of automotive lenses continues to increase, from reversing, 360-degree surround, lane-shifting systems to advanced driver assistance systems (ADAS), with a lens ranging from 6 to 20 lenses. The lens specifications have continued to improve, from VGA (300,000) to over megapixels. However, the imaging quality of the vehicle lens and the imaging quality of the lens on the mobile phone lens still have a lot of room for improvement.

For example, in order to avoid the blind spot of the field of view in the function of reversing and 360 degree view, the optical imaging lens needs to be able to take in image light of 180 ± 5 degrees in the horizontal field of view.

Moreover, the conventional image sensor has an aspect ratio of 4:3 and 16:9. First, for an image sensor with an aspect ratio of 4:3, the ratio of the diagonal field to the horizontal field is 1:0.8. On the other hand, for a 16:9 image sensor, the ratio of the diagonal field of view to the horizontal field of view is 1:0.8716.

According to the ideal image height formula: y = f * tan (ω), y is the image height, f is the focal length, and ω is the half angle of view. The relationship between the image height y and the half angle of view ω is a tangent function, and the distortion formula is (y ₁ -y ₀ )/y ₀ , y ₁ is the image height after distortion, and y ₀ is the initial image height. In order to reduce the distortion aberration, the image height and the half angle of view are not in an equal proportional relationship. Therefore, if an optical imaging lens with a diagonal angle of 200 to 220 degrees is used, it can only ingest 140 to 160 degrees in a 0.8 field of view. The imaging light, while it can only ingest 150-170 degrees of imaging light in the 0.8716 field of view, and this will cause the following problems.

In order to reduce the distortion aberration, an image sensor with an aspect ratio of 4:3 is taken as an example. When the diagonal field of view of the 4:3 image sensor ingests 200-220 degrees of imaging light, 4:3 The horizontal field of view of the image sensor can only ingest 140-160 degrees of imaging light, and part of the imaging light can not be ingested, and the horizontal field of view has a partial view dead angle.

To solve the problem of the above-mentioned visual field dead angle, a possible solution is to scale down the optical imaging lens or scale the image sensor with an aspect ratio of 4:3, and make the image sensing with an aspect ratio of 4:3. The horizontal field of view of the device can capture 180 ± 5 degrees of imaging light. However, this has led to the problem that the four corners of the 4:3 aspect ratio image sensor cannot receive the imaging light, resulting in a dark corner.

In view of this, in the embodiment, the present invention proposes an optical imaging lens capable of increasing the half angle of view of the lens, having a low focal length offset at different ambient temperatures, and maintaining the proper length of the lens. The optical imaging lens of the present invention includes an object side, an image side, and an optical axis. The first lens is a lens having a refractive index of the first sheet from the object side to the image side, and the second lens is the object side to the image side. Two lenses having a refractive power, the third lens being a fourth lens having a refractive power from the side to the object side, and the fourth lens being a lens having a refractive index from the side to the object side The fifth lens is a lens having a second piece having a refractive power from the side to the object side, and the sixth lens is a lens having a refractive power of the first piece from the side to the object side, and the first lens to the sixth The lenses each include an object side facing the object side and passing an imaging ray, and an image side facing the image side and passing an imaging ray.

In the embodiment of the present invention, the second lens has a negative refractive power, the object side surface of the second lens has a convex portion in the vicinity of the optical axis, and a convex portion having a region near the circumference, and the third lens is made of plastic. The object side surface of the third lens has a concave portion in the vicinity of the optical axis, the object side surface of the fourth lens has a convex portion in the vicinity of the optical axis, and the object side surface of the fifth lens has a concave portion in the vicinity of the circumference, the fifth lens a side surface having a concave portion in the vicinity of the optical axis, and a concave portion having a region near the circumference, the image side of the sixth lens having a convex portion in the vicinity of the optical axis, and a convex portion having a region in the vicinity of the circumference, wherein G12 is the distance between the image side surface of the first lens and the object side surface of the second lens on the optical axis, and G34 is the distance between the image side surface of the third lens and the object side surface of the fourth lens on the optical axis, and T3 is defined as the third lens. The center thickness on the optical axis, EFL is defined as the effective focal length of the optical imaging lens, and meets the following conditions: (G12 + T3 + G34) / EFL ≤ 4.800.

In the embodiment, the present invention also proposes an optical imaging lens capable of increasing the half angle of view of the lens, having a low focal length offset at different ambient temperatures, and maintaining the proper length of the lens. The optical imaging lens of the present invention includes an object side, an image side, and an optical axis. The first lens is a lens having a refractive index of the first sheet from the object side to the image side, and the second lens is the object side to the image side. Two lenses having a refractive power, the third lens being a fourth lens having a refractive power from the side to the object side, and the fourth lens being a lens having a refractive index from the side to the object side The fifth lens is a lens having a second piece having a refractive power from the side to the object side, and the sixth lens is a lens having a refractive power of the first piece from the side to the object side, and the first lens to the sixth The lenses each include an object side facing the object side and passing an imaging ray, and an image side facing the image side and passing an imaging ray.

In the embodiment of the present invention, the second lens has a negative refractive power, the object side surface of the second lens has a convex portion in the vicinity of the optical axis, and a convex portion having a region near the circumference, and the third lens is made of plastic. The object side surface of the third lens has a concave portion in the vicinity of the optical axis, and the image side surface of the third lens has a convex portion in the vicinity of the optical axis, and the object side surface of the fourth lens has a convex portion in the vicinity of the optical axis, The image side of the five lens has a concave portion in the vicinity of the optical axis, and a concave portion having a region near the circumference, the image side of the sixth lens has a convex portion in the vicinity of the optical axis, and a convex portion having a region near the circumference Wherein G12 is the distance between the image side surface of the first lens and the object side surface of the second lens on the optical axis, and G34 is the distance between the image side surface of the third lens and the object side surface of the fourth lens on the optical axis, and T3 is defined as The center thickness of the three lens on the optical axis, EFL is defined as the effective focal length of the optical imaging lens, and satisfies the following conditions: (G12 + T3 + G34) / EFL ≤ 4.800.

In the embodiment, the present invention also proposes an optical imaging lens capable of increasing the half angle of view of the lens, having a low focal length offset at different ambient temperatures, and maintaining the proper length of the lens. The optical imaging lens of the present invention includes an object side, an image side, and an optical axis. The first lens is a lens having a refractive index of the first sheet from the object side to the image side, and the second lens is the object side to the image side. Two lenses having a refractive power, the third lens being a fourth lens having a refractive power from the side to the object side, and the fourth lens being a lens having a refractive index from the side to the object side The fifth lens is a lens having a second piece having a refractive power from the side to the object side, and the sixth lens is a lens having a refractive power of the first piece from the side to the object side, and the first lens to the sixth The lenses each include an object side facing the object side and passing an imaging ray, and an image side facing the image side and passing an imaging ray.

In the embodiment of the present invention, the object side surface of the second lens has a convex portion in the vicinity of the optical axis, and a convex portion having a region near the circumference, the third lens is made of plastic, and the third lens has positive refractive power. The object side surface of the third lens has a concave portion in the vicinity of the optical axis, the object side surface of the fourth lens has a convex portion in the vicinity of the optical axis, and the image side surface of the fifth lens has a concave portion in the vicinity of the optical axis, and has a concave portion in the vicinity of the circumference, an image side surface of the sixth lens having a convex portion in the vicinity of the optical axis, and a convex portion having a region near the circumference, wherein G12 is the image side of the first lens and the object side of the second lens The distance on the optical axis, G34 is the distance between the image side of the third lens and the object side of the fourth lens on the optical axis, T3 is defined as the center thickness of the third lens on the optical axis, and the EFL is defined as the optical imaging lens. Effective focal length, and meet the following conditions: (G12 + T3 + G34) / EFL ≤ 4.800.

In the optical imaging lens of the present invention, wherein G45 is the distance between the image side of the fourth lens and the object side of the fifth lens on the optical axis, and T5 is the center thickness of the fifth lens on the optical axis. G56 is the distance between the image side surface of the fifth lens and the object side surface of the sixth lens on the optical axis, and G23 is the image side surface of the second lens and the object side surface of the third lens. The distance on the shaft, AAG is the sum of G12, G23, G34, G45 and G56, and satisfies the following conditions: AAG / (G34 + G45 + T5 + G56) ≤ 5.800.

In the optical imaging lens of the present invention, wherein T2 is the center thickness of the second lens on the optical axis, and G45 is the distance between the image side of the fourth lens and the object side of the fifth lens on the optical axis. And meet the following conditions: (T2+G34+G45)/EFL≤1.700.

In the optical imaging lens of the present invention, wherein ALT is the sum of the center thicknesses of the lenses having refractive power in the optical imaging lens on the optical axis, and T6 is the center thickness of the sixth lens on the optical axis, and satisfies The following conditions: ALT / T6 ≤ 4.300.

In the optical imaging lens of the present invention, wherein T1 is the center thickness of the first lens on the optical axis, and the following condition is satisfied: G12/T1 ≤ 2.100.

In the optical imaging lens of the present invention, wherein T1 is the center thickness of the first lens on the optical axis, and T4 is the center thickness of the fourth lens on the optical axis, and the following condition is satisfied: (T1+T3)/ T4 ≤ 2.700.

In the optical imaging lens of the present invention, wherein BFL is the length of the image side of the sixth lens to an imaging surface on the optical axis, and G23 is the image side of the second lens and the object side of the third lens. The distance on the optical axis and satisfies the following condition: BFL/G23 ≤ 1.600.

In the optical imaging lens of the present invention, wherein T6 is the center thickness of the sixth lens on the optical axis, and G23 is the distance between the image side of the second lens and the object side of the third lens on the optical axis. G45 is the distance between the image side surface of the fourth lens and the object side surface of the fifth lens on the optical axis, and G56 is the image side surface of the fifth lens and the object side surface of the sixth lens. The distance on the shaft, AAG is the sum of G12, G23, G34, G45 and G56, and satisfies the following conditions: AAG/T6 ≤ 2.500.

In the optical imaging lens of the present invention, the following condition is more satisfied: T3/EFL ≤ 1.400.

In the optical imaging lens of the present invention, wherein ALT is the sum of the central thicknesses of the lenses having refractive power in the optical imaging lens on the optical axis, and G23 is the image side of the second lens and the third lens The distance of the side of the object on the optical axis and satisfies the following condition: ALT/G23 ≤ 4.700.

In the optical imaging lens of the present invention, wherein G12 is the distance between the image side of the first lens and the object side of the second lens on the optical axis, and T2 is the center thickness of the second lens on the optical axis. And meet the following conditions: G12 / (T2 + G34 + G45) ≤ 1.400.

In the optical imaging lens of the present invention, wherein TL is the distance from the side of the object of the first lens to the image side of the sixth lens on the optical axis, and T4 is the center thickness of the fourth lens on the optical axis. The BFL is the length of the image side of the sixth lens to an imaging surface on the optical axis, and satisfies the following condition: TL / (T4 + BFL) ≤ 8.400.

In the optical imaging lens of the present invention, wherein TTL is the length of the object side of the first lens to an imaging surface on the optical axis, and G45 is the image side of the fourth lens and the object side of the fifth lens. a distance on the optical axis, T5 is a center thickness of the fifth lens on the optical axis, and G56 is a distance between the image side of the fifth lens and the object side of the sixth lens on the optical axis, And the following conditions are met: TTL / (T3 + G34 + G45 + T5 + G56) ≤ 6.500.

In the optical imaging lens of the present invention, wherein G23 is the distance between the image side of the second lens and the object side of the third lens on the optical axis, and G45 is the image side of the fourth lens and the fifth The distance of the side surface of the lens on the optical axis, G56 is the distance between the image side surface of the fifth lens and the object side surface of the sixth lens on the optical axis, and the AAG is G12, G23, G34, G45 and The sum of G56 and meets the following conditions: AAG/G23 ≤ 2.300.

In the optical imaging lens of the present invention, wherein G45 is the distance between the image side of the fourth lens and the object side of the fifth lens on the optical axis, and T5 is the center thickness of the fifth lens on the optical axis. G56 is the distance between the image side surface of the fifth lens and the object side surface of the sixth lens on the optical axis, and satisfies the following condition: (G34+G45+T5+G56)/EFL≤2.000.

In the optical imaging lens of the present invention, wherein T1 is the center thickness of the first lens on the optical axis, and T4 is the center thickness of the fourth lens on the optical axis, and the following condition is satisfied: (T1+G12)/ T4 ≤ 2.200.

In the optical imaging lens of the present invention, TL is the distance from the object side of the first lens to the image side of the sixth lens on the optical axis, and T2 is the center thickness of the second lens on the optical axis. G45 is a distance between the image side surface of the fourth lens and the object side surface of the fifth lens on the optical axis, and satisfies the following condition: TL / (T2 + G34 + G45) ≤ 12.100.

In the optical imaging lens of the present invention, wherein BFL is the length of the image side of the sixth lens to an imaging surface on the optical axis, T6 is the center thickness of the sixth lens on the optical axis, and satisfies the following conditions : BFL/T6 ≤ 1.600.

The present invention provides an optical imaging lens capable of causing an image sensor to which the optical imaging lens is applied to have a horizontal viewing angle of 175 degrees or more, and the image sensed by the image sensor has no vignetting angle.

An embodiment of the present invention provides an optical imaging lens that sequentially includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens along the optical axis from the object side to the image side. Each of the first to sixth lenses includes an object side facing the object side and passing the imaging light and an image side facing the image side and passing the imaging light. The first lens is the first lens having a refractive power from the object side to the image side. The second lens is a second lens having a refractive power from the object side to the image side. The third lens is a third lens having a refractive power from the object side to the image side. The fourth lens is the first lens having a refractive power from one aperture to the image side. The fifth lens is a second lens having a refractive power from the aperture to the image side. The sixth lens is a third lens having a refractive power from the aperture to the image side. The imaging circle of the optical imaging lens has an inscribed rectangle with an aspect ratio of 4:3. A reference line that images the center of the circle and is parallel to either long side of the rectangle corresponds to ingesting an image having a viewing angle of 175° or more and less than or equal to 188°, and the pair of angles of the rectangle corresponds to an intake of 209° or more and less than An image equal to the 234° viewing angle. The reference line extends from one short side of the rectangle to the other short side of the rectangle. The length of the reference line is equal to the length of any long side of the rectangle.

An embodiment of the present invention provides an optical imaging lens that sequentially includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens along the optical axis from the object side to the image side. Each of the first to sixth lenses includes an object side facing the object side and passing the imaging light and an image side facing the image side and passing the imaging light. The first lens is the first lens having a refractive power from the object side to the image side. The second lens is a second lens having a refractive power from the object side to the image side. The third lens is a third lens having a refractive power from the object side to the image side, and the third lens has a concave surface located in a region near the optical axis. The fourth lens is the first lens having a refractive power from one aperture to the image side. The fifth lens is a second lens having a refractive power from the aperture to the image side. The sixth lens is a third lens having a refractive power from the aperture to the image side. The imaging circle of the optical imaging lens has an inscribed rectangle with an aspect ratio of 16:9. By imaging a center of a circle and a reference line of any long side of the rectangle correspondingly ingesting an image of a viewing angle greater than or equal to 176° and less than or equal to 201°, and a pair of rectangular lines corresponding to the ingestion is greater than or equal to 205° and less than or equal to Image of 232° viewing angle. The reference line extends from one short side of the rectangle to the other short side of the rectangle. The length of the reference line is equal to the length of any long side of the rectangle.

Based on the above, the optical imaging lens of the embodiment of the present invention has an advantageous effect of satisfying the arrangement of the lens and the aperture having the refractive power, the surface shape, the imaging circle of the optical imaging lens, the inscribed rectangle of the imaging circle, The relationship between the image of the reference line of view and the angle of view of the angle of view of the angle of view, the image sensor sensed by the image sensor of the optical imaging lens has no field of view dead angle in the horizontal direction, and the image sensor is four The corners sense the imaged light and the image sensed by the image sensor has no vignetting.

The above described features and advantages of the invention will be apparent from the following description.

Before the present invention is described in detail, it is to be noted that in the drawings of the present invention, similar elements are denoted by the same reference numerals. Here, "a lens having a positive refractive power (or a negative refractive power)" as used in this specification means that the refractive index of the lens on the optical axis calculated by Gaussian optical theory is positive (or negative). ). The image side and the object side are defined as a range through which the imaging light passes, wherein the imaging light includes a chief ray Lc and a marginal ray Lm, as shown in FIG. 1, I is an optical axis and the lens is The optical axis I is symmetric with respect to each other in a radial direction. The region of the light passing through the optical axis is the region A near the optical axis, the region through which the edge light passes is the region C near the circumference, and the lens further includes an extension E ( That is, the radially outward region of the region C near the circumference, for the lens to be assembled in an optical imaging lens, the ideal imaging light does not pass through the extension portion E, but the structure and shape of the extension portion E are not In this regard, the following embodiments omits portions of the extensions for simplicity of the drawing. In more detail, the method of determining the area near the surface or the optical axis, the area near the circumference, or the range of the plurality of areas is as follows:

Please refer to FIG. 1, which is a cross-sectional view of a lens in the radial direction. In the cross-sectional view, when determining the range of the region, a center point is defined as an intersection with the optical axis on the surface of the lens, and a transition point is a point on the surface of the lens, and the line passing through the point It is perpendicular to the optical axis. If there are a plurality of transition points outward in the radial direction, the first transition point and the second transition point are sequentially, and the transition point farthest from the optical axis in the effective half-effect path is the Nth transition point. The range between the center point and the first transition point is a region near the optical axis, and the radially outward region of the Nth transition point is a region near the circumference, and different regions can be distinguished according to the respective transition points. Further, the effective radius is the vertical distance at which the edge ray Lm intersects the lens surface to the optical axis I.

As shown in FIG. 2, the shape concavities and convexities of the region are determined on the image side or the object side by the intersection of the light rays (or the light ray extending lines) passing through the region in parallel with the optical axis (the light focus determination method). For example, when the light passes through the area, the light will be focused toward the image side, and the focus of the optical axis will be on the image side, such as the R point in FIG. 2, and the area is a convex surface. Conversely, if the light passes through the certain area, the light will diverge, and the extension line and the focus of the optical axis are on the object side. For example, at point M in Fig. 2, the area is a concave surface, so the center point is between the first transition point. The convex portion, the radially outward portion of the first switching point is a concave surface; as can be seen from FIG. 2, the switching point is a boundary point of the convex surface of the convex surface, so that the inner side of the region adjacent to the radial direction can be defined. The area has a different face shape with the transition point as a boundary. In addition, if the shape of the region near the optical axis is judged according to the judgment of the person in the field, the R value (referring to the radius of curvature of the paraxial axis, generally refers to the R on the lens data in the optical software). Value) Positive and negative judgment bump. In the aspect of the object, when the R value is positive, it is determined as a convex surface, and when the R value is negative, it is determined as a concave surface; on the image side, when the R value is positive, it is determined as a concave surface, when R is When the value is negative, it is determined as a convex surface, and the unevenness determined by this method is the same as the light focus determination method. If there is no transition point on the surface of the lens, the area near the optical axis is defined as 0~50% of the effective radius, and the area near the circumference is defined as 50~100% of the effective radius.

The lens image side surface of the first example of Fig. 3 has only the first transition point on the effective radius, the first region is the vicinity of the optical axis, and the second region is the region near the circumference. The R value of the side of the lens image is positive, so that the area near the optical axis has a concave surface; the surface shape of the vicinity of the circumference is different from the inner area of the area immediately adjacent to the radial direction. That is, the area near the circumference and the area near the optical axis are different; the area near the circumference has a convex surface.

The lens object side surface of the example 2 of FIG. 4 has first and second switching points on the effective radius, and the first region is a region near the optical axis, and the third region is a region near the circumference. The R value of the side surface of the lens object is positive, so that the area near the optical axis is determined to be a convex surface; the area between the first switching point and the second switching point (second area) has a concave surface, and the area near the circumference (third area) Has a convex face.

The lens side surface of the third example of Fig. 5 has no transition point on the effective radius. At this time, the effective radius 0%~50% is the vicinity of the optical axis, and 50%~100% is the vicinity of the circumference. Since the R value in the vicinity of the optical axis is positive, the side surface of the object has a convex portion in the vicinity of the optical axis; and there is no transition point between the vicinity of the circumference and the vicinity of the optical axis, so that the vicinity of the circumference has a convex portion.

As shown in FIG. 6, the optical imaging lens 1 of the present invention includes at least a first lens 10 from an object side 2 of an object (not shown) to an image side 3 of the image, along an optical axis 4. The second lens 20, the third lens 30, the fourth lens 40, the fifth lens 50, the sixth lens 60, the filter 90, and an image plane 91. Here, the first lens 10 is defined as a lens having a refractive index of the first sheet from the object side 2 to the image side 3, and the second lens 20 is a lens having the refractive index of the second sheet from the object side 2 to the image side 3. The third lens 30 is a lens having a refractive index of the fourth sheet from the side 3 to the object side 2, and the fourth lens 40 is a lens having the refractive index of the third sheet from the image side 3 to the object side 2, The fifth lens 50 is a lens having a second sheet having a refractive power on the side 3 to the object side 2, and the sixth lens 60 is a lens having the first sheet having the refractive power from the image side 3 to the object side 2. In general, the first lens 10, the second lens 20, the fourth lens 40, the fifth lens 50, and the sixth lens 60 may be made of plastic or glass, but the invention is not limited thereto. The third lens 30 is made of a plastic material, which helps to reduce the weight of the optical imaging lens and reduce the manufacturing cost, and at the same time achieves the good effect of the invention.

Further, the optical imaging lens 1 further includes an aperture stop 80 and is disposed at an appropriate position. In FIG. 6, the aperture 80 is disposed between the third lens 30 and the fourth lens 40. When the light (not shown) emitted from the object to be photographed (not shown) on the object side 2 enters the optical imaging lens 1 of the present invention, it passes through the first lens 10, the second lens 20, and the third lens 30. After the aperture 80, the fourth lens 40, the fifth lens 50, the sixth lens 60, and the filter 90, they are focused on the imaging surface 91 of the image side 3 to form a clear image. In the embodiments of the present invention, the selectively disposed filter 90 may also be a filter having various suitable functions for filtering out light of a specific wavelength, and is disposed on a side 62 of the sixth lens 60 facing the image side and an imaging surface. Between 91.

Each of the lenses in the optical imaging lens 1 of the present invention has an object side surface facing the object side 2 and an image side surface facing the image side 3, respectively. Further, each of the lenses in the optical imaging lens 1 of the present invention also has a region in the vicinity of the optical axis and a region in the vicinity of the circumference. For example, the first lens 10 has an object side surface 11 and an image side surface 12; the second lens 20 has an object side surface 21 and an image side surface 22; the third lens 30 has an object side surface 31 and an image side surface 32; and the fourth lens 40 has an object side surface 41 and The image side surface 42; the fifth lens 50 has an object side surface 51 and an image side surface 52; and the sixth lens 60 has an object side surface 61 and an image side surface 62. Each of the object side and the image side has an area near the optical axis and a region near the circumference.

Each of the lenses in the optical imaging lens 1 of the present invention also has a center thickness T on the optical axis 4, respectively. For example, the first lens 10 has a first lens thickness T1, the second lens 20 has a second lens thickness T2, the third lens 30 has a third lens thickness T3, the fourth lens 40 has a fourth lens thickness T4, and the fifth lens 50 There is a fifth lens thickness T5, and the sixth lens 60 has a sixth lens thickness T6. Therefore, in the optical imaging lens 1 on the optical axis 4, the sum of the center thicknesses of all the lenses having the refractive power is called ALT.

Further, in the optical imaging lens 1 of the present invention, there is a distance between the respective lenses which is located on the optical axis 4, respectively. For example, the distance from the image side surface 12 of the first lens 10 to the object side surface 21 of the second lens 20 on the optical axis 4 is G12, the image side surface 22 of the second lens 20 to the object side surface 31 of the third lens 30 is on the optical axis 4 The upper distance is G23, the image side surface 32 of the third lens 30 to the object side surface 41 of the fourth lens 40 on the optical axis 4 is G34, the image side surface 42 of the fourth lens 40, and the object side surface 51 of the fifth lens 50. The distance on the optical axis 4 is G45, the distance from the image side surface 52 of the fifth lens 50 to the object side surface 61 of the sixth lens 60 on the optical axis 4 is G56. Also define AAG = G12 + G23 + G34 + G45 + G56.

In addition, the length of the object side surface 11 to the imaging surface 91 of the first lens 10 on the optical axis is TTL. The effective focal length of the optical imaging lens is EFL, and TL is the length of the image side surface 11 of the first lens 10 to the image side surface 62 of the sixth lens 60 on the optical axis 4.

In addition, it is further defined that f1 is the focal length of the first lens 10; f2 is the focal length of the second lens 20; f3 is the focal length of the third lens 30; f4 is the focal length of the fourth lens 40; f5 is the focal length of the fifth lens 50; F6 is the focal length of the sixth lens 60; n1 is the refractive index of the first lens 10; n2 is the refractive index of the second lens 20; n3 is the refractive index of the third lens 30; n4 is the refractive index of the fourth lens 40; n5 The refractive index of the fifth lens 50; n6 is the refractive index of the sixth lens 60; υ1 is the Abbe number of the first lens 10, that is, the dispersion coefficient; υ2 is the Abbe coefficient of the second lens 20; υ3 The Abbe's coefficient of the third lens 30; υ4 is the Abbe's coefficient of the fourth lens 10; υ5 is the Abbe's coefficient of the fifth lens 50; and υ6 is the Abbe's coefficient of the sixth lens 60. G6F represents the gap width between the sixth lens 60 and the filter 90 on the optical axis 4, TF represents the thickness of the filter 90 on the optical axis 4, and GFP represents the light between the filter 90 and the imaging surface 91. The gap width on the shaft 4, BFL is the distance from the image side surface 62 of the sixth lens 60 to the imaging surface 91 on the optical axis 4, that is, BFL = G6F + TF + GFP.

First embodiment

Referring to Figure 6, a first embodiment of the optical imaging lens 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 91 of the first embodiment, please refer to FIG. 7A, the astigmatic field aberration in the sagittal direction, please refer to FIG. 7B and the tangential direction. Refer to Figure 7C for astigmatic aberrations and distortion aberration for reference. See Figure 7D. In all the embodiments, the Y-axis of each of the spherical aberration diagrams represents the field of view, and the highest point thereof is 1.0. In the first embodiment to the twelfth embodiment, the astigmatism diagram and the distortion diagram of the Y-axis represent the image height, and the system image height is It is 2.084 mm.

The optical imaging lens system 1 of the first embodiment is mainly composed of six lenses having refractive power, a filter 90, an aperture 80, and an imaging surface 91. The aperture 80 is disposed between the third lens 30 and the fourth lens 40. The filter 90 can prevent light of a specific wavelength from being projected onto the image plane to affect the image quality.

The first lens 10 is made of glass and has a negative refractive power. The object side surface 11 facing the object side 2 has a convex portion 13 located in the vicinity of the optical axis and a convex portion 14 located in the vicinity of the circumference, and the image side surface 12 facing the image side 3 has the concave portion 16 located in the vicinity of the optical axis and located near the circumference The concave portion 17 of the region. The object side surface 11 and the image side surface 12 of the first lens are both spherical surfaces.

The second lens 20 is made of plastic and has a negative refractive power. The object side surface 21 facing the object side 2 has a convex portion 23 located in the vicinity of the optical axis and a convex portion 24 located in the vicinity of the circumference, and the image side surface 22 facing the image side 3 has the concave portion 26 located in the vicinity of the optical axis and located near the circumference The concave portion 27 of the region. Both the object side surface 21 and the image side surface 22 of the second lens 20 are aspherical.

The third lens 30 is made of plastic and has a positive refractive power, and the object side surface 31 facing the object side 2 has a concave surface portion 33 located in the vicinity of the optical axis and a concave surface portion 34 located in the vicinity of the circumference, and the image toward the image side 3 The side surface 32 has a convex portion 36 located in the vicinity of the optical axis and a convex portion 37 in the vicinity of the circumference. Both the object side surface 31 and the image side surface 32 of the third lens 30 are aspherical.

The fourth lens 40 is made of plastic and has a positive refractive power. The object side surface 41 facing the object side 2 has a convex portion 43 located in the vicinity of the optical axis and a convex portion 44 located in the vicinity of the circumference, and the image facing the image side 3 The side surface 42 has a convex portion 46 located in the vicinity of the optical axis and a convex portion 47 near the circumference. Both the object side surface 41 and the image side surface 42 of the fourth lens 40 are aspherical.

The fifth lens 50 is made of plastic and has a negative refractive power, and the object side surface 51 facing the object side 2 has a concave surface portion 53 located in the vicinity of the optical axis and a concave surface portion 54 located in the vicinity of the circumference, and the image facing the image side 3 The side surface 52 has a concave surface portion 56 located in the vicinity of the optical axis and a concave surface portion 57 located in the vicinity of the circumference. Further, the object side surface 51 and the image side surface 52 of the fifth lens 50 are both aspherical.

The sixth lens 60 is made of plastic and has a positive refractive power, and the object side surface 61 facing the object side 2 has a convex portion 63 located in the vicinity of the optical axis and a convex portion 64 located in the vicinity of the circumference, and the image side facing the image side 3 62 has a convex portion 66 located in the vicinity of the optical axis and a convex portion 67 located in the vicinity of the circumference. Further, the object side surface 61 and the image side surface 62 of the sixth lens 60 are both aspherical. Further, in the present embodiment, the fifth lens 50 and the sixth lens 60 are filled with a colloid or a film body, but are not limited thereto. The filter 90 is located between the image side surface 62 of the sixth lens 60 and the imaging surface 91, and the filter 90 also has an object side surface 92 facing the object side 2 and an image side surface 93 facing the image side 3.

In the optical imaging lens 1 of the present invention, from the first lens 10 to the sixth lens 60, the total side 11/21/31/41/51/61 and the image side 12/22/32/42/52/62 total Twelve surfaces. In the case of an aspherical surface, these aspherical surfaces are defined by the following formula (1): …(1)

among them:

R represents the radius of curvature of the surface of the lens;

Z represents the depth of the aspherical surface (the point on the aspherical surface that is Y from the optical axis, and the tangent plane that is tangent to the vertex on the aspherical optical axis, the vertical distance between the two);

Y represents the vertical distance between the point on the aspherical surface and the optical axis;

K is a conic constant;

a _i is the i-th order aspheric coefficient.

It should be noted that if it is a spherical surface, the conic coefficient K and the aspheric coefficient a _{i of} each order are both 0 and are shown in the table.

The optical data of the optical lens system of the first embodiment is shown in Fig. 30, and the aspherical data is as shown in Fig. 31. A virtual reference surface (not shown) having an infinite radius of curvature is disposed between the filter 90 and the imaging surface 91. In the optical lens system of the following embodiments, the aperture value (f-number) of the integral optical lens system is Fno, the effective focal length is (EFL), and the maximum half angle of view (HFOV) is an integral optical lens system. Half of the Medium of View, the radius of curvature, thickness, and focal length are in millimeters (mm). Among them, the system image height (ImgH) = 2.084 mm; EFL = 1.131 mm; HFOV = 107.500 degrees; TTL = 11.265 mm; Fno = 2.400. In addition, the optical imaging lens design of the first embodiment has a good back focal length variation performance, and the normal temperature of 20 ° C is set as a reference at which the back focal length variation is 0.000 mm, and in - At an ambient temperature of 20 ° C, the change in the length of the back focal length is -0.040 mm, and at a temperature of 80 ° C, the change in the length of the focal length is 0.066 mm.

Second embodiment

Referring to Figure 8, a second embodiment of the optical imaging lens 1 of the present invention is illustrated. It is to be noted that, from the second embodiment, in order to simplify and clearly express the drawings, only the faces of the lenses different from the first embodiment are specifically indicated on the drawings, and the other faces similar to those of the first embodiment are For example, a concave or convex surface is not otherwise marked. For the longitudinal spherical aberration on the imaging surface 91 of the second embodiment, please refer to FIG. 9A, the astigmatic aberration in the sagittal direction, and FIG. 9B, the astigmatic aberration in the meridional direction, refer to FIG. 9C, and the distortion aberration, refer to FIG. 9D. . The design of the second embodiment is similar to that of the first embodiment, and only relevant parameters such as lens curvature radius, lens thickness, lens aspheric coefficient or back focus are different.

The detailed optical data of the second embodiment is shown in Fig. 32, and the aspherical data is as shown in Fig. 33. The system image height = 2.786 mm; EFL = 1.370 mm; HFOV = 107.500 degrees; TTL = 11.136 mm; Fno = 2.400. In particular: the second embodiment is easier to manufacture than the first embodiment and thus has a higher yield. In addition, the optical imaging lens of the second embodiment is designed to have a good change in the back focus length, and the normal temperature of 20 ° C is set as a reference at which the back focal length variation is 0.000 mm, and in - At an ambient temperature of 20 ° C, the change in the length of the back focal length is -0.046 mm, and at a temperature of 80 ° C, the change in the length of the focal length is 0.076 mm.

Third embodiment

Referring to Figure 10, a third embodiment of the optical imaging lens 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 91 of the third embodiment, please refer to FIG. 11A, the astigmatic aberration in the sagittal direction, and FIG. 11B, the astigmatic aberration in the meridional direction, refer to FIG. 11C, and the distortion aberration, refer to FIG. 11D. . The design of the third embodiment is similar to that of the first embodiment, and only relevant parameters such as the radius of curvature of the lens, the thickness of the lens, the aspherical coefficient of the lens, or the back focal length are different.

The detailed optical data of the third embodiment is shown in Fig. 34, and the aspherical data is as shown in Fig. 35, wherein the system image height = 1.772 mm; EFL = 1.105 mm; HFOV = 96.750 degrees; TTL = 12.911 mm; Fno = 2.600. In particular: the third embodiment is easier to manufacture than the first embodiment and thus has a higher yield. In addition, the optical imaging lens design of the third embodiment has a good back focal length variation performance, and the normal temperature of 20 ° C is set as a reference at which the back focal length variation is 0.000 mm, and in- At an ambient temperature of 20 ° C, the change in the length of the back focal length is -0.041 mm, and at a temperature of 80 ° C, the change in the length of the focal length is 0.066 mm.

Fourth embodiment

Referring to Figure 12, a fourth embodiment of the optical imaging lens 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 91 of the fourth embodiment, please refer to FIG. 13A, the astigmatic aberration in the sagittal direction, and FIG. 13B, the astigmatic aberration in the meridional direction, refer to FIG. 13C, and the distortion aberration, refer to FIG. 13D. . The design of the fourth embodiment is similar to that of the first embodiment, and only relevant parameters such as the radius of curvature of the lens, the thickness of the lens, the aspherical coefficient of the lens, or the back focal length are different.

The detailed optical data of the fourth embodiment is shown in Fig. 36, and the aspherical data is as shown in Fig. 37, wherein the system image height = 1.636 mm; EFL = 0.662 mm; HFOV = 96.750 degrees; TTL = 11.925 mm; Fno=2.400. In particular: the fourth embodiment is easier to manufacture than the first embodiment and thus has a higher yield. Further, the optical imaging lens of the fourth embodiment is designed to have a good change in the back focus length, and the normal temperature of 20 ° C is set as a reference at which the back focal length variation is 0.000 mm, and in - At an ambient temperature of 20 ° C, the change in the length of the back focal length is -0.034 mm, and at a temperature of 80 ° C, the change in the length of the focal length is 0.054 mm.

Fifth embodiment

Referring to Figure 14, a fifth embodiment of the optical imaging lens 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 91 of the fifth embodiment, please refer to FIG. 15A, the astigmatic aberration in the sagittal direction, and FIG. 15B, the astigmatic aberration in the meridional direction, refer to FIG. 15C, and the distortion aberration, refer to FIG. 15D. . The design of the fifth embodiment is similar to that of the first embodiment, and only relevant parameters such as the lens curvature radius, the lens thickness, the lens aspheric coefficient or the back focus are different.

The detailed optical data of the fifth embodiment is shown in Fig. 38, and the aspherical data is as shown in Fig. 39, wherein the system image height = 3.450 mm; EFL = 1.973 mm; HFOV = 107.500 degrees; TTL = 13.074 mm; Fno = 2.600. In particular: the fifth embodiment is easier to manufacture than the first embodiment, and thus the yield is high. Further, the optical imaging lens of the fifth embodiment is designed to have a good change in the back focus length, and the normal temperature of 20 ° C is set as a reference at which the back focal length variation is 0.000 mm, and in - At an ambient temperature of 20 ° C, the change in the length of the back focal length is -0.063 mm, and at a temperature of 80 ° C, the change in the length of the focal length is 0.098 mm.

Sixth embodiment

Referring to Figure 16, a sixth embodiment of the optical imaging lens 1 of the present invention is illustrated. Please refer to FIG. 17A for the longitudinal spherical aberration on the imaging surface 91 of the sixth embodiment, FIG. 17B for the astigmatic aberration in the sagittal direction, and FIG. 17C for the astigmatic aberration in the meridional direction, and FIG. 17D for the distortion aberration. . In the sixth embodiment, the object side surface 51 of the fifth lens 50 has a convex portion 53' in the vicinity of the optical axis, the fourth lens 40 is made of glass, and the object side surface 41 and the image side surface 42 of the fourth lens 40 are spherical. . Further, the relevant parameters such as the lens curvature radius, the lens thickness, the lens aspheric coefficient or the back focus are also different from those of the first embodiment.

In addition, other embodiments described from the sixth embodiment to the following paragraphs include, in addition to the first lens 10 to the sixth lens 60, a seventh lens 70 disposed on the second lens 20 and Between the three lenses 30. The seventh lens 70 is made of plastic and has a positive refractive power. The object side surface 71 facing the object side 2 has a concave surface portion 73 located in the vicinity of the optical axis and a concave surface portion 74 located in the vicinity of the circumference, and the image side surface 72 facing the image side 3 has the convex surface portion 76 located in the vicinity of the optical axis and located near the circumference The convex portion 77 of the region. Both the object side surface 71 and the image side surface 72 of the seventh lens 70 are aspherical.

Similarly, the object side surface 71 and the image side surface 22 of the seventh lens 70 are defined by the following formula:

among them:

R represents the radius of curvature of the surface of the lens;

Z represents the depth of the aspherical surface (the point on the aspherical surface that is Y from the optical axis, and the tangent plane that is tangent to the vertex on the aspherical optical axis, the vertical distance between the two);

Y represents the vertical distance between the point on the aspherical surface and the optical axis;

K is a conic constant;

a _i is the i-th order aspheric coefficient.

For the sixth embodiment and subsequent embodiments, T7 is the center thickness of the seventh lens position on the optical axis 4. In the optical imaging lens 1 on the optical axis 4, the sum of the center thicknesses of all lenses having refractive power is referred to as ALT.

Further, it is further defined that f7 is the focal length of the seventh lens 70; n7 is the refractive index of the seventh lens 70; and υ7 is the Abbe's coefficient of the seventh lens 70. The distance from the image side surface 22 of the second lens 20 to the object side surface 71 of the seventh lens 70 on the optical axis 4 is G27, the image side surface 72 of the seventh lens 70, and the object side surface 31 of the third lens 30 are on the optical axis 4. The distance is G73.

The detailed optical data of the sixth embodiment is shown in Fig. 40, and the aspherical data is as shown in Fig. 41, wherein the system image height = 1.667 mm; EFL = 0.946 mm; HFOV = 103.000 degrees; TTL = 19.418 mm; Fno=2.400. In particular: the sixth embodiment is easier to manufacture than the first embodiment, and thus the yield is high. Further, the optical imaging lens of the sixth embodiment is designed to have a good change in the back focus length, and the normal temperature of 20 ° C is set as a reference at which the back focal length variation is 0.000 mm, and in - At an ambient temperature of 20 ° C, the change in the length of the back focal length is -0.001 mm, and at a temperature of 80 ° C, the change in the length of the focal length is 0.002 mm.

Seventh embodiment

Referring to Figure 18, a seventh embodiment of the optical imaging lens 1 of the present invention is illustrated. Please refer to FIG. 19A for the longitudinal spherical aberration on the imaging surface 91 of the seventh embodiment, FIG. 19B for the astigmatic aberration in the sagittal direction, FIG. 19C for the astigmatic aberration in the meridional direction, and FIG. 19D for the distortion aberration. . The design of the seventh embodiment is similar to that of the sixth embodiment, and only relevant parameters such as the lens curvature radius, the lens thickness, the lens aspheric coefficient, or the back focus are different.

The detailed optical data of the seventh embodiment is shown in Fig. 42, and the aspherical data is as shown in Fig. 43, wherein the system image height = 3.264 mm; EFL = 1.853 mm; HFOV = 103.000 degrees; TTL = 21.235 mm; Fno = 2.600. In particular: the seventh embodiment is easier to manufacture than the first embodiment, and thus the yield is high. Further, the optical imaging lens of the seventh embodiment is designed to have a good change in the back focus length, and the normal temperature of 20 ° C is set as a reference at which the back focal length variation is 0.000 mm, and in - At an ambient temperature of 20 ° C, the change in the length of the back focal length is -0.008 mm, and at a temperature of 80 ° C, the change in the length of the focal length is 0.013 mm.

Eighth embodiment

Referring to Figure 20, an eighth embodiment of the optical imaging lens 1 of the present invention is illustrated. Please refer to FIG. 21A for the longitudinal spherical aberration on the imaging surface 91 of the eighth embodiment, FIG. 21B for the astigmatic aberration in the sagittal direction, and FIG. 21C for the astigmatic aberration in the meridional direction, and FIG. 21D for the distortion aberration. . The design of the eighth embodiment is similar to that of the sixth embodiment, and only relevant parameters such as the radius of curvature of the lens, the thickness of the lens, the aspherical coefficient of the lens, or the back focal length are different.

The detailed optical data of the eighth embodiment is shown in Fig. 44, and the aspherical data is as shown in Fig. 45, wherein the system image height = 3.383 mm; EFL = 1.769 mm; HFOV = 103.000 degrees; TTL = 22.634 mm; Fno = 2.600. In particular: the eighth embodiment is easier to manufacture than the first embodiment, and thus the yield is high. Further, the optical imaging lens of the eighth embodiment is designed to have a good change in the back focus length, and the normal temperature of 20 ° C is set as a reference at which the back focal length variation is 0.000 mm, and in - At an ambient temperature of 20 ° C, the change in the length of the back focal length is 0.012 mm, and at a temperature of 80 ° C, the change in the length of the focal length is -0.016 mm.

Ninth embodiment

Referring to Fig. 22, a ninth embodiment of the optical imaging lens 1 of the present invention is illustrated. Please refer to FIG. 23A for the longitudinal spherical aberration on the imaging surface 91 of the ninth embodiment, FIG. 23B for the astigmatic aberration in the sagittal direction, FIG. 23B for the astigmatic aberration in the meridional direction, and FIG. 23D for the distortion aberration. . The design of the ninth embodiment is similar to that of the sixth embodiment, and only relevant parameters such as the lens curvature radius, the lens thickness, the lens aspherical coefficient, or the back focus are different.

The detailed optical data of the ninth embodiment is shown in Fig. 46, and the aspherical data is as shown in Fig. 47, wherein the system image height = 2.820 mm; EFL = 1.129 mm; HFOV = 103.000 degrees; TTL = 15.052 mm; Fno = 2.600. In particular: the ninth embodiment is easier to manufacture than the first embodiment, and thus the yield is high. In addition, the optical imaging lens of the ninth embodiment has a good back-focus length variation performance, and the normal temperature of 20 ° C is set as a reference at which the back focal length variation is 0.000 mm, and in- At an ambient temperature of 20 ° C, the change in the length of the back focal length is 0.003 mm, and at a temperature of 80 ° C, the change in the length of the focal length is -0.003 mm.

Tenth embodiment

Referring to Figure 24, a tenth embodiment of the optical imaging lens 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 91 of the tenth embodiment, please refer to FIG. 25A, the astigmatic aberration in the sagittal direction, and FIG. 25B, the astigmatic aberration in the meridional direction, refer to FIG. 25C, and the distortion aberration, refer to FIG. 25D. . The design of the tenth embodiment is similar to that of the sixth embodiment, and only relevant parameters such as the lens curvature radius, the lens thickness, the lens aspheric coefficient, or the back focus are different.

The detailed optical data of the tenth embodiment is shown in Fig. 48, and the aspherical data is as shown in Fig. 49, wherein the system image height = 2.030 mm; EFL = 1.390 mm; HFOV = 103.000 degrees; TTL = 18.076 mm; Fno=2.400. In particular: the tenth embodiment is easier to manufacture than the first embodiment, so the yield is higher. In addition, the optical imaging lens of the tenth embodiment has a good back-focus length variation performance, and the normal temperature of 20 ° C is set as a reference at which the back focal length variation is 0.000 mm, and in- At an ambient temperature of 20 ° C, the change in the length of the back focal length is 0.003 mm, and at a temperature of 80 ° C, the change in the length of the focal length is -0.005 mm.

Eleventh embodiment

Referring to Fig. 26, an eleventh embodiment of the optical imaging lens 1 of the present invention is illustrated. Please refer to FIG. 27A for the longitudinal spherical aberration on the imaging surface 91 of the eleventh embodiment, FIG. 27B for the astigmatic aberration in the sagittal direction, and FIG. 27B for the astigmatic aberration in the meridional direction, and FIG. 27C for the distortion aberration. 27D. The design of the eleventh embodiment is similar to that of the sixth embodiment, and only relevant parameters such as the lens curvature radius, the lens thickness, the lens aspheric coefficient, or the back focus are different.

The detailed optical data of the eleventh embodiment is shown in Fig. 50, and the aspherical data is as shown in Fig. 51, wherein the system image height = 2.146 mm; EFL = 1.459 mm; HFOV = 103.000 degrees; TTL = 14.434 mm. ; Fno = 2.500. In particular: the eleventh embodiment is easier to manufacture than the first embodiment, and thus the yield is high. In addition, the optical imaging lens of the eleventh embodiment has a good back focal length variation performance, and the normal temperature of 20 ° C is set as a reference at which the back focal length variation is 0.000 mm. At an ambient temperature of -20 ° C, the change in the length of the back focal length is 0.012 mm. At an ambient temperature of 80 ° C, the change in the length of the focal length is -0.016 mm.

Twelfth embodiment

Referring to Figure 28, a twelfth embodiment of the optical imaging lens 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 91 of the twelfth embodiment, please refer to FIG. 29A, the astigmatic aberration in the sagittal direction, and FIG. 29B, the astigmatic aberration in the meridional direction, refer to FIG. 29C, and the distortion aberration, please refer to FIG. 29D. The design of the twelfth embodiment is similar to that of the sixth embodiment, and only relevant parameters such as the lens curvature radius, the lens thickness, the lens aspheric coefficient, or the back focus are different.

The detailed optical data of the twelfth embodiment is shown in Fig. 52, and the aspherical data is as shown in Fig. 53, wherein the system image height = 1.675 mm; EFL = 0.975 mm; HFOV = 103.000 degrees; TTL = 14.015 mm ; Fno = 2.500. In particular: the twelfth embodiment is easier to manufacture than the first embodiment and thus has a higher yield. In addition, the optical imaging lens of the twelfth embodiment has a good back focal length variation performance, and the normal temperature of 20 ° C is set as a reference at which the back focal length variation is 0.000 mm. At an ambient temperature of -20 ° C, the change in the length of the back focal length is -0.008 mm, and at a temperature of 80 ° C, the change in the length of the focal length is 0.012 mm.

In addition, the important parameters of the respective embodiments are organized in FIG. 54, FIG. 55, FIG. 56, and FIG. 57, respectively.

Applicants have found that the lens configuration of the present invention can effectively improve the viewing angle through the combination of the following designs, and has the low back focus variation at different ambient temperatures, and shortens the lens length and enhances the sharpness of the object and achieves good image quality.

1. The side of the second lens object is located in the vicinity of the optical axis as a convex surface, and the side of the second lens object in the vicinity of the circumference is a convex surface, which can help collect imaging light.

2. The side of the third lens object located in the vicinity of the optical axis is a concave surface, which is advantageous for correcting aberrations generated by the first lens and the second lens.

3. The third lens is made of plastic, which helps to make the optical imaging lens lighter and reduce the manufacturing cost.

4. The side surface of the fourth lens object has a convex surface in the vicinity of the optical axis, which can help the image light to gather.

5. The area near the optical axis of the fifth lens image is a concave surface, the area near the circumference of the side surface of the fifth lens image is a concave surface, the area near the optical axis of the sixth lens image is a convex surface, and the area near the circumference of the side surface of the sixth lens image is The convex surface can achieve the effect of correcting the overall aberration.

6. Selectively pairing the second lens with a negative refractive power corrects aberrations produced by the first lens.

7. Selectively matching the third lens to have a positive refractive power, or the third lens image side is located in the vicinity of the circumference as a convex portion, and the aberration generated by the second lens can be corrected.

8. Selectively matching the side of the fifth lens object in the vicinity of the circumference is a concave surface, which helps to adjust the aberration generated by the first lens to the fourth lens.

In addition, through the numerical control of the following parameters, the designer can assist the designer to design an optical lens set that has good optical performance and is effectively shortened in overall length and is technically feasible. Therefore, the optical imaging system can achieve a better configuration under the numerical conditions that satisfy the following conditional formula:

(a) In order to shorten the length of the lens system, the present invention appropriately shortens the lens thickness and the air gap between the lenses, but considering the ease of the lens assembly process and the necessity of achieving the image quality, the lens thickness and the air gap between the lenses The optical imaging system can achieve a better configuration by arranging each other or arranging the proportion of specific optical parameters in a particular combination of mirror values.

AAG / G23 ≤ 2.300, a preferred range is 1.400 ≤ AAG / G23 ≤ 2.300;

AAG/T6≤2.500, the preferred range is 1.400≤AAG/T6≤2.500;

ALT / G23 ≤ 4.700, a preferred range is 1.900 ≤ ALT / G23 ≤ 4.700;

ALT / T6 ≤ 4.300, a preferred range is 2.600 ≤ ALT / T6 ≤ 4.300;

G12/T1≤2.100, preferably in the range of 0.800≤G12/T1≤2.100;

G12 / (T2 + G34 + G45) ≤ 1.400, a preferred range is 0.500 ≤ G12 / (T2 + G34 + G45) ≤ 1.400;

BFL/G23≤1.600, the preferred range is 0.300≤BFL/G23≤1.600;

BFL/T6≤1.600, the preferred range is 0.300≤BFL/T6≤1.600;

(T1+T3)/T4≤2.700, preferably in the range of 1.100≤(T1+T3)/T4≤2.700;

AAG / (G34 + G45 + T5 + G56) ≤ 5.800, a preferred range is 2.000 ≤ AAG / (G34 + G45 + T5 + G56) ≤ 5.800;

(T1+G12)/T4≤2.200, and a preferred range is 1.200 ≤ (T1 + G12) / T4 ≤ 2.200.

(b) If the following conditional expression is satisfied, the EFL is maintained at a ratio to other optical parameters, which helps to increase the angle of view during the thinning of the optical system.

(G12+T3+G34)/EFL≤4.800, preferably in the range of 0.300≤(G12+T3+G34)/EFL≤4.800;

(G34+G45+T5+G56)/EFL≤2.000, the preferred range is 0.600≤(G34+G45+T5+G56)/EFL≤2.000;

T3/EFL≤1.400, the preferred range is 0.600≤T3/EFL≤1.400;

(T2+G34+G45)/EFL≤1.700, and a preferred range is 0.500≤(T2+G34+G45)/EFL≤1.700.

c) Maintain an appropriate value between the optical component parameters and the lens length ratio, avoiding too small a parameter is not conducive to manufacturing, or avoiding excessive parameters and making the lens length too long.

TTL / (T3 + G34 + G45 + T5 + G56) ≤ 6.500, the preferred range is 2.500 ≤ TTL / (T3 + G34 + G45 + T5 + G56) ≤ 6.500;

TL / (T2 + G34 + G45) ≤ 12.100, a preferred range is 5.700 ≤ TL / (T2 + G34 + G45) ≤ 12.100;

TL / (T4 + BFL) ≤ 8.400, and a preferred range is 2.400 ≤ TL / (T4 + BFL) ≤ 8.400.

Next, in order to explain the relationship between the imaging circle, the inscribed rectangle, and the rear end image sensor in the optical imaging lens of the embodiment of the present invention. Referring to FIG. 58A and FIG. 58B, in general, when the imaging light from the object side 2 is projected to the image side 3 through the optical imaging lens 1, it is ideally focused by the optical imaging lens 1 and located on the image side. A circular image is formed on the 91. The circular image is called an Imaging Circle IC, and the imaging circle IC is an imaging result obtained by the entire optical imaging lens 1. Further, a sensing surface (not shown) of the image sensor at the rear end of the optical imaging lens 1 is configured to overlap the imaging surface 91 so that the image sensor located at the rear end of the optical imaging lens 1 senses the image. The imaging circle IC has an inscribed rectangle RT inscribed in the imaging circle IC, and the inscribed rectangle RT can have different aspect ratios depending on different positions on the imaging circle IC. The inscribed rectangle RT has two opposite long sides LE and two opposite short sides SE, and the aspect ratio is defined as the length ratio of the long side LE to the short side SE. In an embodiment of the present invention, the aspect ratio of the inscribed rectangle RT is exemplified by 4:3 (as shown in FIG. 58A) and 16:9 (as shown in FIG. 58B). Generally, the shape of the image sensor is substantially rectangular, and the aspect ratio of the commonly used image sensor has a 4:3 or 16:9 aspect, and the size can match the inside of FIG. 58A and FIG. 58B. Connect the rectangle.

Referring to FIG. 58A and FIG. 58B again, first, the Maximum Hald Field of View (HFOV) is a range in which the optical imaging lens 1 can receive half of the maximum angle of the object image on the object side 2, and the object side 2 The range of the radius length of the image on which the object is imaged by the optical imaging lens 1 on the imaging surface 91 of the image side 3 is referred to as the field of view, wherein 1 time of the field of view is 1 times the maximum image height, also called the system image height. The image sensor of the back end is sized to fit the inscribed rectangle RT of Figures 58A and 58B. The optical imaging lens 1 actually receives an image corresponding to the diagonal direction of the diagonal DL of the inscribed rectangle RT in the maximum viewing angle, and corresponds to the imaging of the diagonal DL of the inscribed rectangle RT, and the optical imaging lens 1 In fact, the image received in the horizontal direction in the viewing angle is correspondingly imaged on the reference line HL of the inscribed rectangle RT. Therefore, the angle range of the diagonal angle of view (Diagonal FOV) corresponding to the diagonal field of the image sensor is the diagonal line DL of the two diagonals of the inscribed rectangle RT. The range of the angle of collection of the object on the object side 2. On the other hand, the angular range of the horizontal viewing angle (Horizontal FOV) corresponding to the horizontal field of the image sensor is the range of the light receiving angle of the object on the object side 2 taken by the reference line HL. The reference line HL is defined as passing through the center C of the imaging circle IC and parallel to the long side LE of the inscribed rectangle RT. The reference line HL extends from one short side SE of the rectangle RT to the other short side SE of the rectangle RT, and the length of the reference line HL is equal to the length of any long side LE of the rectangle RT.

Thirteenth embodiment

Referring to Fig. 59, a thirteenth embodiment of the optical imaging lens 1 of the present invention is illustrated. Please refer to FIG. 60A for the longitudinal spherical aberration on the imaging surface 91 of the thirteenth embodiment, FIG. 60B for the astigmatic aberration in the sagittal direction, and FIG. 60C for the astigmatic aberration in the meridional direction, and for the distortion aberration. Figure 60D. In the thirteenth to twenty-first embodiments, the Y-axis of each astigmatism map and the distortion map represents a half angle of view, and the half angle of view is 104.50 degrees.

The optical imaging lens system 1 of the thirteenth embodiment is mainly composed of six lenses 10 to 60 having a refractive power, a filter 90, a diaphragm 80, and an imaging surface 91. The aperture 80 is disposed between the third lens 30 and the fourth lens 40. The filter 90 can prevent light of a specific wavelength from being projected onto the imaging surface 91 to affect image quality.

The first lens 10 is a first lens having a refractive index from the object side 2 to the image side 3. The first lens 10 is made of glass and has a negative refractive power. The object side surface 11 facing the object side 2 has a convex portion 13 located in the vicinity of the optical axis and a convex portion 14 located in the vicinity of the circumference, and the image side surface 12 facing the image side 3 has the concave portion 16 located in the vicinity of the optical axis and located near the circumference The concave portion 17 of the region. The object side surface 11 and the image side surface 12 of the first lens are both spherical surfaces.

The second lens 20 is a second lens having a refractive index from the object side 2 to the image side 3. The second lens 20 is made of plastic and has a negative refractive power. The object side surface 21 facing the object side 2 has a convex portion 23 located in the vicinity of the optical axis and a convex portion 24 located in the vicinity of the circumference, and the image side surface 22 facing the image side 3 has the concave portion 26 located in the vicinity of the optical axis and located near the circumference The concave portion 27 of the region. Both the object side surface 21 and the image side surface 22 of the second lens 20 are aspherical.

The third lens 30 is a third lens having a refractive index from the object side 2 to the image side 3. The third lens 30 is made of plastic and has a positive refractive power, and the object side surface 31 facing the object side 2 has a concave surface portion 33 located in the vicinity of the optical axis and a concave surface portion 34 located in the vicinity of the circumference, and the image toward the image side 3 The side surface 32 has a convex portion 36 located in the vicinity of the optical axis and a convex portion 37 in the vicinity of the circumference. Both the object side surface 31 and the image side surface 32 of the third lens 30 are aspherical.

The aperture 80 is disposed between the third lens 30 and the fourth lens 40.

The fourth lens 40 is the first lens having a refractive index from the aperture 80 to the image side 3. The fourth lens 40 is made of plastic and has a positive refractive power. The object side surface 41 facing the object side 2 has a convex portion 43 located in the vicinity of the optical axis and a convex portion 44 located in the vicinity of the circumference, and the image facing the image side 3 The side surface 42 has a convex portion 46 located in the vicinity of the optical axis and a convex portion 47 near the circumference. Both the object side surface 41 and the image side surface 42 of the fourth lens 40 are aspherical.

The fifth lens 50 is a second lens having a refractive index from the aperture 80 to the image side 3. The fifth lens 50 is made of plastic and has a negative refractive power, and the object side surface 51 facing the object side 2 has a concave surface portion 53 located in the vicinity of the optical axis and a concave surface portion 54 located in the vicinity of the circumference, and the image facing the image side 3 The side surface 52 has a concave surface portion 56 located in the vicinity of the optical axis and a concave surface portion 57 located in the vicinity of the circumference. Further, the object side surface 51 and the image side surface 52 of the fifth lens 50 are both aspherical.

The sixth lens 60 is a third lens having a refractive index from the aperture 80 to the image side 3. The sixth lens 60 is made of plastic and has a positive refractive power, and the object side surface 61 facing the object side 2 has a convex portion 63 located in the vicinity of the optical axis and a convex portion 64 located in the vicinity of the circumference, and the image side facing the image side 3 62 has a convex portion 66 located in the vicinity of the optical axis and a convex portion 67 located in the vicinity of the circumference. Further, the object side surface 61 and the image side surface 62 of the sixth lens 60 are both aspherical. In the present embodiment, the fifth lens 50 and the sixth lens 60 are filled with a colloid, a film body or a cement material, but are not limited thereto. The filter 90 is located between the image side surface 62 of the sixth lens 60 and the imaging surface 91.

In the optical imaging lens 1 of the present invention, from the first lens 10 to the sixth lens 60, the total side 11/21/31/41/51/61 and the image side 12/22/32/42/52/62 total For twelve surfaces, the surface can be defined by the above formula (1). If the surface is spherical, the conic coefficient K and all aspheric coefficients a _i are 0, and the corresponding data is omitted and not shown.

The optical data of the optical lens system of the thirteenth embodiment is shown in Fig. 77, and the aspherical data is as shown in Fig. 78. The system image height = 2.240 mm; EFL = 1.000 mm; HFOV = 104.500 degrees; TTL = 11.869 mm; Fno = 2.060.

Referring to FIG. 60A to FIG. 60D again, the diagram of FIG. 60A illustrates the longitudinal spherical aberration of the thirteenth embodiment, and the diagrams of FIG. 60B and FIG. 60C respectively illustrate the thirteenth embodiment when the wavelength is 470 nm and 555 nm. And at 650 nm, on the imaging surface 91, the field curvature aberration in the sagittal direction and the field curvature aberration in the meridional direction, and the pattern in Fig. 60D illustrates the thirteenth embodiment when the wavelengths are 470 nm, 555 nm, and 650. Distortion aberration on the imaging surface 91 at nm. In the longitudinal spherical aberration diagram of the thirteenth embodiment, in Fig. 60A, the curves formed by each of the wavelengths are very close to each other and are close to the middle, indicating that the off-axis rays of different heights of each wavelength are concentrated near the imaging point, by each The deflection amplitude of the curve of one wavelength can be seen that the deviation of the imaging point of the off-axis rays of different heights is controlled within the range of ±0.025 mm, so the thirteenth embodiment does significantly improve the spherical aberration of the same wavelength, and The distances between the three representative wavelengths are also quite close to each other, and the imaging positions representing the different wavelengths of light are already quite concentrated, so that the chromatic aberration is also significantly improved.

In the two field curvature aberration diagrams of FIGS. 60B and 60C, the focal length variation of the three representative wavelengths over the entire field of view falls within ±0.075 mm, indicating that the optical system of the thirteenth embodiment can be effective. Eliminate aberrations. The distortion aberration diagram of FIG. 60D shows that the distortion aberration of the thirteenth embodiment is maintained within a range of ±100%, indicating that the distortion aberration of the thirteenth embodiment has met the imaging quality requirements of the optical system. Accordingly, the thirteenth embodiment of the present invention can provide good image quality even when the length of the system has been shortened to about 11.869 mm as compared with the prior art optical lens.

Fourteenth embodiment

Referring to Fig. 61, a fourteenth embodiment of the optical imaging lens 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 91 of the fourteenth embodiment, please refer to FIG. 62A, the astigmatic aberration in the sagittal direction, FIG. 62B, the astigmatic aberration in the meridional direction, FIG. 62C, and the distortion aberration. Figure 62D. The optical imaging lens 1 of the fourteenth embodiment is substantially similar to the thirteenth embodiment, and the difference between the two is as follows: each optical data, aspherical coefficient, and parameters of the lenses 10 to 60 are more or less slightly different. Further, the object side surface 41 of the fourth lens 40 has a concave surface portion 43' located in the vicinity of the optical axis. It is to be noted that, in order to clearly show the drawing, the reference numerals of the vicinity of the optical axis and the vicinity of the circumference similar to the thirteenth embodiment are omitted in Fig. 61.

The detailed optical data of the fourteenth embodiment is shown in Fig. 79, and the aspherical data is as shown in Fig. 80, in which the system image height = 2.240 mm; EFL = 0.990 mm; HFOV = 117.000 degrees; TTL = 12.994 mm. ; Fno = 2.060.

In the longitudinal spherical aberration diagram of the fourteenth embodiment, in Fig. 62A, the imaging point deviation of off-axis rays of different heights is controlled within a range of ±0.025 mm. In the two field curvature aberration diagrams of Figs. 62B and 62C, the amount of change in the focal length of the three representative wavelengths over the entire field of view falls within ±0.1 mm. On the other hand, the distortion aberration diagram of Fig. 62D shows that the distortion aberration of the second embodiment is maintained within the range of ±100%. Accordingly, the fourteenth embodiment of the present invention provides a good image quality even when the length of the system has been shortened to about 12.944 mm as compared with the thirteenth embodiment.

As can be seen from the above description, the half angle of view of the fourteenth embodiment is larger than the half angle of view of the thirteenth embodiment.

Fifteenth embodiment

Referring to Fig. 63, a fifteenth embodiment of the optical imaging lens 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 91 of the fifteenth embodiment, refer to FIG. 64A, the astigmatic aberration in the sagittal direction, refer to FIG. 64B, the astigmatic aberration in the meridional direction, refer to FIG. 64C, and the distortion aberration. Figure 64D. The optical imaging lens 1 of the fifteenth embodiment is substantially similar to the thirteenth embodiment, and the difference between the two is as follows: each optical data, aspherical coefficient, and parameters between the lenses 10 to 60 are more or less slightly different. Further, the object side surface 41 of the fourth lens 40 has a concave surface portion 43' located in the vicinity of the optical axis. It is to be noted that, in order to clearly show the drawing, the reference numerals of the vicinity of the optical axis and the vicinity of the circumference similar to the thirteenth embodiment are omitted in Fig. 63.

The detailed optical data of the fifteenth embodiment is shown in Fig. 81, and the aspherical data is as shown in Fig. 82, wherein the system image height = 2.058 mm; EFL = 0.973 mm; HFOV = 102.500 degrees; TTL = 12.485 mm. ; Fno = 2.060.

In the longitudinal spherical aberration diagram of the fifteenth embodiment, in Fig. 64A, the imaging point deviation of off-axis rays of different heights is controlled within a range of ±0.04 mm. In the two field curvature aberration diagrams of Figs. 64B and 64C, the amount of change in the focal length of the three representative wavelengths over the entire field of view falls within ±0.1 mm. On the other hand, the distortion aberration diagram of Fig. 64D shows that the distortion aberration of the second embodiment is maintained within the range of ±100%. Accordingly, the fifteenth embodiment of the present invention can provide good image quality under the condition that the length of the system has been shortened to about 12.485 mm as compared with the thirteenth embodiment.

As apparent from the above description, the fifteenth embodiment is easier to manufacture than the thirteenth embodiment, and thus the yield is high.

Sixteenth embodiment

Referring to Fig. 65, a sixteenth embodiment of the optical imaging lens 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 91 of the sixteenth embodiment, please refer to FIG. 66A, the astigmatic aberration in the sagittal direction, and FIG. 66B, the astigmatic aberration in the meridional direction, refer to FIG. 66C, and the distortion aberration. Figure 66D. The optical imaging lens 1 of the sixteenth embodiment is substantially similar to the thirteenth embodiment, and the difference between the two is as follows: each optical data, aspherical coefficient, and parameters of the lenses 10 to 60 are more or less slightly different. Further, the object side surface 41 of the fourth lens 40 has a concave surface portion 43' located in the vicinity of the optical axis. It is to be noted that, in order to clearly show the drawing, the reference numerals of the vicinity of the optical axis and the vicinity of the circumference which are similar to the thirteenth embodiment are omitted in FIG.

The detailed optical data of the sixteenth embodiment is shown in Fig. 83, and the aspherical data is as shown in Fig. 84, wherein the system image height = 2.056 mm; EFL = 0.953 mm; HFOV = 116.000 degrees; TTL = 13.100 mm. ; Fno = 2.060.

The longitudinal spherical aberration diagram of the sixteenth embodiment is shown in Fig. 66A, and the imaging point deviation of off-axis rays of different heights is controlled within a range of ± 0.02 mm. In the two field curvature aberration diagrams of Figs. 66B and 66C, the amount of change in the focal length of the three representative wavelengths over the entire field of view falls within ±0.075 mm. On the other hand, the distortion aberration diagram of Fig. 66D shows that the distortion aberration of the second embodiment is maintained within the range of ±100%. Accordingly, the sixteenth embodiment of the present invention can provide a good image quality under the condition that the length of the system has been shortened to about 13.100 mm as compared with the thirteenth embodiment.

As can be seen from the above description, the half angle of view of the sixteenth embodiment is larger than the half angle of view of the thirteenth embodiment. The longitudinal spherical aberration of the sixteenth embodiment is smaller than the longitudinal spherical aberration of the thirteenth embodiment.

Seventeenth embodiment

Referring to Fig. 67, a seventeenth embodiment of the optical imaging lens 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 91 of the seventeenth embodiment, refer to FIG. 68A, the astigmatic aberration in the sagittal direction, and FIG. 68B, the astigmatic aberration in the meridional direction, refer to FIG. 68C, and the distortion aberration. Figure 68D. The optical imaging lens 1 of the seventeenth embodiment is substantially similar to the thirteenth embodiment, and the difference between the two is as follows: each optical data, aspherical coefficient, and parameters of the lenses 10 to 60 are more or less slightly different. Further, the refractive index of the fifth lens 50 is positive. The refractive index of the sixth lens 60 is negative. The object side surface 51 of the fifth lens 50 has a convex portion 53' located in the vicinity of the optical axis and a convex portion 54' located in the vicinity of the circumference. The image side surface 52 of the fifth lens 50 has a convex portion 56' located in the vicinity of the optical axis and a convex portion 57' located in the vicinity of the circumference. The object side surface 61 of the sixth lens 60 has a concave surface portion 63' located in the vicinity of the optical axis and a concave surface portion 64' located in the vicinity of the circumference. Both the object side surface 51 and the image side surface 52 of the fifth lens 50 are spherical. Both the object side surface 61 and the image side surface 62 of the sixth lens 60 are spherical. It is to be noted that, in order to clearly show the drawing, the reference numerals of the vicinity of the optical axis and the vicinity of the circumference similar to the thirteenth embodiment are omitted in Fig. 67.

The detailed optical data of the seventeenth embodiment is shown in Fig. 85, and the aspherical data is as shown in Fig. 86, wherein the system image height = 2.240 mm; EFL = 1.191 mm; HFOV = 104.500 degrees; TTL = 14.066 mm ; Fno = 2.200.

The longitudinal spherical aberration diagram of the seventeenth embodiment is shown in Fig. 68A, and the imaging point deviation of off-axis rays of different heights is controlled within a range of ± 0.015 mm. In the two field curvature aberration diagrams of Figs. 68B and 68C, the amount of change in the focal length of the three representative wavelengths over the entire field of view falls within ±0.25 mm. On the other hand, the distortion aberration diagram of Fig. 68D shows that the distortion aberration of the seventeenth embodiment is maintained within the range of ±100%. Accordingly, the seventeenth embodiment of the present invention can provide good image quality even when the length of the system has been shortened to about 14.066 mm as compared with the thirteenth embodiment.

As apparent from the above description, the seventeenth embodiment is easier to manufacture than the thirteenth embodiment, and thus the yield is high.

Eighteenth embodiment

Referring to Fig. 69, an eighteenth embodiment of the optical imaging lens 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 91 of the eighteenth embodiment, refer to FIG. 70A, the astigmatic aberration in the sagittal direction, and FIG. 70B, the astigmatic aberration in the meridional direction, refer to FIG. 70C, and the distortion aberration. Figure 70D. The optical imaging lens 1 of the eighteenth embodiment is substantially similar to the thirteenth embodiment, and the difference between the two is as follows: each optical data, aspherical coefficient, and parameters between the lenses 10 to 60 are more or less slightly different. Further, the material of the second lens 20 is glass. The refractive power of the fifth lens 50 is positive. The refractive index of the sixth lens 60 is negative. The object side surface 51 of the fifth lens 50 has a convex portion 53' located in the vicinity of the optical axis and a convex portion 54' located in the vicinity of the circumference. The image side surface 52 of the fifth lens 50 has a convex portion 56' located in the vicinity of the optical axis and a convex portion 57' located in the vicinity of the circumference. The object side surface 61 of the sixth lens 60 has a concave surface portion 63' located in the vicinity of the optical axis and a concave surface portion 64' located in the vicinity of the circumference. The image side surface 62 of the sixth lens 60 has a concave portion 66' located in the vicinity of the optical axis and a concave portion 67' located in the vicinity of the circumference. Both the object side surface 21 and the image side surface 22 of the second lens 20 are spherical. It is to be noted that, in order to clearly show the drawing, the reference numerals of the vicinity of the optical axis and the vicinity of the circumference which are similar to the thirteenth embodiment are omitted in Fig. 69.

The detailed optical data of the eighteenth embodiment is shown in Fig. 87, and the aspherical data is as shown in Fig. 90, wherein the system image height = 2.240 mm; EFL = 1.101 mm; HFOV = 117.000 degrees; TTL = 21.301 mm ; Fno = 2.400.

In the longitudinal spherical aberration diagram of the eighteenth embodiment, in Fig. 70A, the imaging point deviation of off-axis rays of different heights is controlled within a range of ±0.010 mm. In the two field curvature aberration diagrams of Figs. 70B and 70C, the amount of change in the focal length of the three representative wavelengths over the entire field of view falls within ±0.04 mm. On the other hand, the distortion aberration diagram of Fig. 70D shows that the distortion aberration of the second embodiment is maintained within the range of ±100%. Accordingly, the eighteenth embodiment of the present invention can provide a good image quality under the condition that the length of the system has been shortened to about 21.301 mm as compared with the thirteenth embodiment.

As can be seen from the above description, the half angle of view of the eighteenth embodiment is larger than the half angle of view of the thirteenth embodiment. The longitudinal spherical aberration of the eighteenth embodiment is smaller than the longitudinal spherical aberration of the thirteenth embodiment. The distortion aberration of the eighteenth embodiment is smaller than the distortion aberration of the thirteenth embodiment.

Nineteenth embodiment

Referring to Fig. 71, a nineteenth embodiment of the optical imaging lens 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 91 of the nineteenth embodiment, please refer to FIG. 72A, the astigmatic aberration in the sagittal direction, and FIG. 72B, the astigmatic aberration in the meridional direction, refer to FIG. 72C, and the distortion aberration. Figure 72D. The optical imaging lens 1 of the nineteenth embodiment is substantially similar to the thirteenth embodiment, and the difference between the two is as follows: each optical data, aspherical coefficient, and parameters of the lenses 10 to 60 are more or less slightly different. Further, the refractive index of the fifth lens 50 is positive. The refractive index of the sixth lens 60 is negative. The image side surface 42 of the fourth lens 40 has a concave portion 47' located in the vicinity of the circumference. The object side surface 51 of the fifth lens 50 has a convex portion 53' located in the vicinity of the optical axis and a convex portion 54' located in the vicinity of the circumference. The image side surface 52 of the fifth lens 50 has a convex portion 56' located in the vicinity of the optical axis and a convex portion 57' located in the vicinity of the circumference. The object side surface 61 of the sixth lens 60 has a concave surface portion 63' located in the vicinity of the optical axis and a concave surface portion 64' located in the vicinity of the circumference. Both the object side surface 51 and the image side surface 52 of the fifth lens 50 are spherical. Both the object side surface 61 and the image side surface 62 of the sixth lens 60 are spherical. It is to be noted that, in order to clearly show the drawing, the reference numerals of the vicinity of the optical axis and the vicinity of the circumference which are similar to the thirteenth embodiment are omitted in FIG.

The detailed optical data of the nineteenth embodiment is shown in Fig. 89, and the aspherical data is as shown in Fig. 92, wherein the system image height = 2.057 mm; EFL = 1.189 mm; HFOV = 102.500 degrees; TTL = 11.689 mm. ; Fno = 2.200.

The longitudinal spherical aberration diagram of the nineteenth embodiment is shown in Fig. 72A, and the imaging point deviation of off-axis rays of different heights is controlled within a range of ±0.025 mm. In the two field curvature aberration diagrams of Figs. 72B and 72C, the amount of change in the focal length of the three representative wavelengths over the entire field of view falls within ±0.08 mm. On the other hand, the distortion aberration diagram of Fig. 72D shows that the distortion aberration of the nineteenth embodiment is maintained within the range of ±100%. Accordingly, the nineteenth embodiment of the present invention provides a good image quality under the condition that the length of the system has been shortened to about 11.689 mm as compared with the thirteenth embodiment.

As can be seen from the above description, the system length of the nineteenth embodiment is smaller than the system length of the thirteenth embodiment.

Twentyth embodiment

Referring to Fig. 73, a twentieth embodiment of the optical imaging lens 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 91 of the twentieth embodiment, please refer to FIG. 74A, the astigmatic aberration in the sagittal direction, and FIG. 74B, the astigmatic aberration in the meridional direction, refer to FIG. 74C, and the distortion aberration. Figure 74D. The optical imaging lens 1 of the twentieth embodiment is substantially similar to the thirteenth embodiment, and the difference between the two is as follows: The optical imaging lens 1 further includes a seventh lens 70. The seventh lens 70 is disposed between the third lens 30 and the aperture 80. The material of the seventh lens 70 is plastic. The seventh lens 70 has an object side surface 71 facing the object side 2 and an image side surface 72 facing the image side 3. The object side surface 71 of the seventh lens 70 has a concave portion 73 located in the vicinity of the optical axis and a convex portion 74' located in the vicinity of the circumference. The image side surface 72 of the seventh lens 70 has a convex portion 76 located in the vicinity of the optical axis and a convex portion 77 located in the vicinity of the circumference. Both the object side surface 71 and the image side surface 72 are aspherical. It can also be defined by the above formula (1), and will not be described again here. Moreover, each optical data, aspherical coefficient, and parameters between the lenses 10 to 60 are somewhat different. It is to be noted that, in order to clearly show the drawing, the reference numerals of the vicinity of the optical axis and the vicinity of the circumference which are similar to the thirteenth embodiment are omitted in FIG. Further, regarding the definition of the relevant parameters of the seventh lens 70, reference may be made to the above paragraph, and it is further defined that the distance from the image side surface 32 of the third lens 30 to the object side surface 71 of the seventh lens 70 on the optical axis 4 is G37. The distance from the image side surface 72 of the seventh lens 70 to the object side surface 41 of the fourth lens 40 on the optical axis 4 is G74. And AAG = G12 + G23 + G37 + T7 + G74 + G45 + G56.

The detailed optical data of the twentieth embodiment is shown in Fig. 91, and the aspherical data is as shown in Fig. 92, in which the system image height = 2.240 mm; EFL = 0.966 mm; HFOV = 104.500 degrees; TTL = 12.470 mm. ; Fno=2.100.

Referring to FIG. 74A to FIG. 74D again, the diagram of FIG. 74A illustrates the longitudinal spherical aberration of the twentieth embodiment, and the diagrams of FIG. 74B and FIG. 74C respectively illustrate the twentieth embodiment when the wavelength is 470 nm and 555 nm. And at 650 nm, on the imaging surface 91, the field curvature aberration in the sagittal direction and the field curvature aberration in the meridional direction, and the pattern in Fig. 74D illustrates the twentieth embodiment when the wavelengths are 470 nm, 555 nm, and 650. Distortion aberration on the imaging surface 91 at nm. In the longitudinal spherical aberration diagram of the twentieth embodiment, in Fig. 74A, the curves formed by each of the wavelengths are very close to each other and are close to the middle, indicating that the off-axis rays of different heights of each wavelength are concentrated near the imaging point, by each The deflection amplitude of the curve of one wavelength can be seen that the deviation of the imaging point of the off-axis rays of different heights is controlled within the range of ±0.015 mm, so the twentieth embodiment does significantly improve the spherical aberration of the same wavelength, and The distances between the three representative wavelengths are also quite close to each other, and the imaging positions representing the different wavelengths of light are already quite concentrated, so that the chromatic aberration is also significantly improved.

In the two field curvature aberration diagrams of FIG. 74B and FIG. 74C, the focal length variation of the three representative wavelengths in the entire field of view falls within ±0.07 mm, indicating that the optical system of the twentieth embodiment can be effective. Eliminate aberrations. The distortion aberration diagram of FIG. 74D shows that the distortion aberration of the twentieth embodiment is maintained within a range of ±100%, indicating that the distortion aberration of the twentieth embodiment has met the imaging quality requirements of the optical system. Accordingly, the twentieth embodiment of the present invention provides a good image quality even when the length of the system has been shortened to about 14.055 mm as compared with the prior art optical lens.

Twenty-first embodiment

Referring to Fig. 75, a twenty-first embodiment of the optical imaging lens 1 of the present invention is illustrated. For the longitudinal spherical aberration on the imaging surface 91 of the twenty-first embodiment, please refer to FIG. 76A, the astigmatic aberration in the sagittal direction, refer to FIG. 76B, the astigmatic aberration in the meridional direction, refer to FIG. 76C, and the distortion aberration. Refer to Figure 76D. The optical imaging lens 1 of the twenty-first embodiment is substantially similar to the twentieth embodiment, and the difference between the two is as follows: The optical imaging lens 1 of the twenty-first embodiment further includes an eighth lens 8. The eighth lens 8 is a fourth lens having a refractive index from the aperture 80 to the image side 3. Alternatively, the eighth lens 8 is disposed between the sixth lens 60 and the filter 90. The eighth lens 8 has an object side surface 81 facing the object side 2 and an image side surface 82 facing the image side 3. The object side surface 81 of the eighth lens 8 has a convex portion 83 located in the vicinity of the optical axis and a concave portion 84 located in the vicinity of the circumference. The image side surface 82 of the eighth lens 8 has a convex portion 86 located in the vicinity of the optical axis and a convex portion 87 located in the vicinity of the circumference. Both the object side surface 81 and the image side surface 82 are aspherical. It can also be defined by the above formula (1), and will not be described again here. The object side surface 31 of the third lens 30 has a convex portion 33' located in the vicinity of the optical axis. The image side surface 62 of the sixth lens 60 has a concave surface portion 67' located in the vicinity of the circumference. The image side surface 72 of the seventh lens 70 has a concave surface portion 77' located in the vicinity of the circumference. In addition, the optical data, the aspherical coefficients, and the parameters between the lenses 10 to 70 are somewhat different. It is to be noted that, in order to clearly show the drawing, the reference numerals of the vicinity of the optical axis and the vicinity of the circumference similar to those of the twentieth embodiment are omitted in FIG.

For the twenty-first embodiment, T8 is the center thickness of the eighth lens 8 on the optical axis 4. In the optical imaging lens 1 on the optical axis 4, the sum of the center thicknesses of all lenses having refractive power is called ALT, that is, ALT = T1 + T2 + T3 + T4 + T5 + T6 + T7 + T8.

Further, it is further defined that f8 is the focal length of the eighth lens 8; n8 is the refractive index of the eighth lens 80; and υ8 is the Abbe's coefficient of the eighth lens 8. The distance from the image side surface 62 of the sixth lens 60 to the object side surface 81 of the eighth lens 8 on the optical axis 4 is G68, the image side surface 82 of the eighth lens 8 to the object side surface 92 of the filter 90 on the optical axis 4. The distance is G8F.

The detailed optical data of the twenty-first embodiment is shown in Fig. 93, and the aspherical data is as shown in Fig. 94, in which the system image height = 2.240 mm; EFL = 0.969 mm; HFOV = 104.500 degrees; TTL = 14.055 mm PCT; Fno=2.100.

Referring to FIG. 76A to FIG. 76D again, the diagram of FIG. 76A illustrates the longitudinal spherical aberration of the twenty-first embodiment, and the diagrams of FIG. 76B and FIG. 76C respectively illustrate the wavelength of the twenty-first embodiment when the wavelength is 470 nm. At 555 nm and 650 nm, the field curvature aberration in the sagittal direction and the field curvature aberration in the meridional direction on the imaging plane 91, the graph of Fig. 76D illustrates the wavelength of the twenty-first embodiment when the wavelength is 470 nm, 555 Distortion aberration on the imaging surface 91 at nm and 650 nm. In the longitudinal spherical aberration diagram of the twenty-first embodiment, in Fig. 76A, the curves formed by each of the wavelengths are very close to each other and are close to the middle, indicating that the off-axis rays of different heights of each wavelength are concentrated near the imaging point, The deflection amplitude of the curve of each wavelength can be seen that the imaging point deviation of the off-axis rays of different heights is controlled within the range of ±0.375 mm, so the twenty-first embodiment does significantly improve the spherical aberration of the same wavelength. In addition, the distances of the three representative wavelengths are also relatively close to each other, and the imaging positions representing the different wavelengths of light are already quite concentrated, so that the chromatic aberration is also significantly improved.

In the two field curvature aberration diagrams of FIG. 76B and FIG. 76C, the focal length variation of the three representative wavelengths in the entire field of view falls within ±0.08 mm, indicating that the optical system of the twenty-first embodiment can Effectively eliminate aberrations. The distortion aberration diagram of FIG. 76D shows that the distortion aberration of the twenty-first embodiment is maintained within a range of ±100%, indicating that the distortion aberration of the twenty-first embodiment conforms to the imaging quality of the optical system. It is claimed that the twenty-first embodiment can provide good image quality even when the length of the system has been shortened to about 14.055 mm as compared with the prior art optical lens.

Further, the important parameters of the thirteenth to twenty-first embodiments are respectively arranged in Figs. 95, 96, 97 and 98.

First, in Figures 95 and 96, the units of the corresponding values in the fields "Fno" and "V1" to "V8" are dimensionless. The unit of the corresponding value in the field "Half-FOV" is degrees, and the other columns The value corresponding to the bit is mm.

Next, in Figures 97 and 98, the corresponding values in the fields "y in the 0.8 field of view", "y in the 0.8716 field", "BFL", "ALT", "AAG", "TL", and "TTL" The unit is in mm. The unit of the value corresponding to the field "ω in the 0.8 view place" and "ω in the 0.8716 view place" is the degree. The values corresponding to other fields are dimensionless.

Referring to FIG. 58A, FIG. 58B, FIG. 97 and FIG. 98, in the field "ω corresponding to the intake in the 0.8 viewing place", the representative meaning is that the image sensor can be correspondingly ingested at 0.8 times of the visual field. Half angle of view of the image. The field "ω at the 0.8716 visual location corresponding to the intake" and so on.

On the other hand, in the field "y in the 0.8 field of view", the meaning it represents is that the image sensor corresponds to the image height of 0.8 times the field of view. The field "y in the field of 0.8716" is deduced by analogy.

For the following conditional expressions, at least one of the objectives is to maintain the system focal length and optical parameters at an appropriate value, to avoid any parameter being too large to facilitate the correction of the aberration of the optical imaging system as a whole, or to avoid any parameter. Too small to affect assembly or increase manufacturing difficulties.

For the conditional expression (EFL + AAG + BFL) / ALT ≦ 1.500, it is preferably limited to 0.800 ≦ (EFL + AAG + BFL) / ALT ≦ 1.500.

For the conditional expression in accordance with (EFL*Fno+T4)/ImgH≦2.100, it is preferably limited to 1.000 ≦ (EFL*Fno+T4)/ImgH≦2.100.

For the following conditional expressions, at least one of the objectives is to maintain an appropriate value for the thickness and spacing of each lens, to avoid any parameter being too large to facilitate the thinning of the optical imaging lens as a whole, or to avoid any parameter being too small to affect. Assembly or increase the difficulty of manufacturing.

For the conditional expression in accordance with TL/ALT ≦ 3.500, it is preferably limited to 1.260 ≦ TL / ALT ≦ 3.500.

For the conditional expression conforming to (G12+G45+T5+G56)/T1≦2.900, it is preferably limited to 0.800 ≦ (G12+G45+T5+G56)/T1≦2.900.

For the conditional expression conforming to (G45 + G56 + T5 + T6) / G23 ≦ 4.300, it is preferably limited to 0.710 ≦ (G45 + G56 + T5 + T6) / G23 ≦ 4.300.

For the conditional expression of (G34+G45+T4+T5)/T1≦10.400, it is preferably limited to 2.730≦(G34+G45+T4+T5)/T1≦10.400

For the conditional expression of (G34+G45+T3+T6)/T2≦7.300, it is preferably limited to 0.970≦(G34+G45+T3+T6)/T2≦7.300.

For the conditional expression conforming to (G23+G34+G45+T5)/T1≦6.000, it is preferably limited to 3.500 ≦(G23+G34+G45+T5)/T1≦6.000.

For the conditional expression conforming to TTL/ALT ≦ 2.500, it is preferably limited to 1.650 ≦ TTL / ALT ≦ 2.500.

For the conditional expression conforming to (G12+G45+T5+G56)/T4≦6.100, it is preferably limited to 1.100 ≦ (G12+G45+T5+G56)/T4≦6.100.

For the conditional expression conforming to (G45 + G56 + T4 + T6) / G23 ≦ 3.300, it is preferably limited to 0.690 ≦ (G45 + G56 + T4 + T6) / G23 ≦ 3.300.

For the conditional expression conforming to (G34 + G45 + T3 + T6) / T1 ≦ 6.500, it is preferably limited to 1.200 ≦ (G34 + G45 + T3 + T6) / T1 ≦ 6.500.

For the conditional expression conforming to (G34 + G45 + T4 + T5) / T2 ≦ 6.850, it is preferably limited to 1.900 ≦ (G34 + G45 + T4 + T5) / T2 ≦ 6.850.

For the conditional expression corresponding to (G23 + G34 + G45 + T6) / T1 ≦ 10.000, it is preferably limited to 0.915 ≦ (G23 + G34 + G45 + T6) / T1 ≦ 10.000.

In view of the unpredictability of optical system design, under the framework of the present invention, the above conditional condition can better improve the length of the lens of the present invention, increase the available aperture, improve the imaging quality, or improve the assembly yield to improve the previous The shortcomings of technology.

In addition, any combination of the parameters of the embodiment can be selected to increase the lens limit to facilitate the lens design of the same architecture of the present invention. In view of the unpredictability of the optical system design, under the framework of the present invention, the above conditional condition can better shorten the system length, improve the imaging quality, or improve the assembly yield of the optical imaging lens 10 of the embodiment of the present invention. And improve the shortcomings of the prior art. The exemplary defined relationship listed above may also be selectively combined with the unequal amount applied to the embodiment of the present invention, and is not limited thereto. In addition to the foregoing relationship, a detailed structure such as a concave-convex surface arrangement of a plurality of other lenses may be additionally designed for a single lens or a plurality of lenses to enhance control of system performance and/or resolution. It should be noted that such details need to be selectively combined and applied to other embodiments of the invention without conflict.

The range of values including the maximum and minimum values obtained by combining the proportional relationship of the optical parameters disclosed in the various embodiments of the present invention can be implemented.

In addition, any combination of the parameters of the embodiment can be selected to increase the lens limit to facilitate the lens design of the same architecture of the present invention.

In summary, the optical imaging lens 10 of the embodiment of the present invention can achieve the following effects and advantages:

1. The longitudinal spherical aberration, astigmatic aberration, and distortion of the embodiments of the present invention all conform to the usage specifications. In addition, the three off-axis rays of different wavelengths of red, green and blue are concentrated near the imaging point. The deviation of the amplitude of each curve shows that the deviation of the imaging points of the off-axis rays of different heights is controlled. Good spherical aberration, aberration, and distortion suppression. Referring further to the imaging quality data, the distances of the three representative wavelengths of red, green, and blue are also relatively close to each other, indicating that the embodiment of the present invention has excellent concentration-suppressing ability for different wavelengths of light in various states. Therefore, it is understood from the above that the present invention has good optical properties.

2. The imaging circle IC of the optical imaging lens 1 of the present invention has an inscribed rectangle RT having an aspect ratio of 4:3. The reference line HL parallel to the long side LE of the inscribed rectangle RT corresponds to an image in which the field of view is 175° or more and less than or equal to 188°, and the diagonal line DL of the rectangle RT corresponds to an intake of 209° or more and less than or equal to 234. ° Image of the field of view. For a 4:3 aspect ratio image sensor, the horizontal viewing angle is greater than or equal to 175 degrees to reach the horizontal direction without a field of view dead angle, and at the same time, the image sensor has four corners of the image sensor to reach the four corners of the image sensor. No vignetting effect.

3. The ratio of the field of view corresponding to the angle of view corresponding to the diagonal DL corresponding to the angle of view corresponding to the reference line HL is 1:0.8, which is beneficial to the horizontal direction without the field of view dead angle and the aspect ratio 4: 3 The four corners of the image sensor have no vignetting design.

4. The imaging circle IC of the optical imaging lens 1 of the present invention has an inscribed rectangle RT having an aspect ratio of 16:9. The reference line HL parallel to the long side LE of the inscribed rectangle RT corresponds to an image of the field of view of 176° or more and less than or equal to 201°, and the diagonal line DL of the rectangle RT corresponds to an intake of 205° or more and less than or equal to 232. ° Image of the field of view. For an aspect ratio 16:9 image sensor, the horizontal angle of view is greater than 176 degrees to reach a horizontal direction without a field of view dead angle, and at the same time, the image sensor has four corners of the image sensor to reach the four corners of the image sensor without a vignetting angle. efficacy.

5. The ratio of the field of view corresponding to the angle of view of the diagonal DL corresponding to the field of view corresponding to the reference line HL is 1:0.8716, which is beneficial to the horizontal direction without the field of view and the aspect ratio 16:9. The four corners of the image sensor have no vignetting design.

6. When the aperture 80 is satisfied between the third lens 30 and the fourth lens 40, the first lens 10 has a negative refractive power, the second lens 20 has a negative refractive power, and the third lens 30 has a positive refractive power, The surface combination of the object side surface 31 of the three lens 30 having a concave surface portion 34 in the vicinity of the circumference is advantageous for: super wide-angle light collection by at least three lenses in front of the aperture, and correction of chromatic aberration and astigmatism by at least three lenses after the aperture The aberration maintains a certain image quality, and the preferred surface shape is limited such that the object side surface 31 of the third lens 3 has the concave surface portion 33 located in the vicinity of the optical axis.

7. A set of aspherical glued lens sets among the three lenses behind the aperture 80 is advantageous for improving image quality such as chromatic aberration and astigmatism.

8. When the optical imaging lens 1 satisfies the condition of 3.5 ≦(V1+V2)/V3≦6, the above limitation is beneficial to correct the chromatic aberration of the first three lenses.

Nine, when the optical imaging lens 1 satisfies the condition of 3.5 ≦(V1+V4)/V3≦6, the above limitation is beneficial to correct the chromatic aberration of the first four lenses.

10. As the performance of image processing increases, the distortion aberration is easier to correct by image processing and the cost of image processing is gradually reduced. The optical imaging lens 1 of the embodiment of the present invention adopts a design in which the image height y and the half angle of view ω are approximately proportionally designed to achieve the advantages of no horizontal blindness in the horizontal direction and no vignetting in the four corners of the image sensor. Although the distortion aberration is worse than the existing lens, with the instant image processing, the image with extremely low distortion aberration can be obtained instantly. For example, the optical imaging lens 1 of the thirteenth to twenty-first embodiments of the present invention satisfies the following conditional formula: 0.900 ≦ y / (EFL * ω) ≦ 1.300, ω is the angle at which the optical imaging lens 1 is taken up at different angles Half angle of view, and y is the image height corresponding to each half angle, where ω is calculated in radians, which can be regarded as no unit, so y/(EFL*ω) can be regarded as no unit, or the unit is radians ^-1 . The image height y of the optical imaging lens 1, the half angle of view ω (in degrees), the half angle of view ω (in radians), and the corresponding value of y/(EFL*ω) (the ω in this value is in radians Corresponding relationships of numerical values are calculated in FIGS. 99 to 101. When the optical imaging lens 1 satisfies 0.900 ≦ y / (EFL * ω) ≦ 1.300, it is advantageous to realize a design in which the image height y is approximately proportional to the half angle ω.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

A~C‧‧‧Area

CE‧‧‧ imaging round center

DL‧‧‧ diagonal

E‧‧‧Extension

HL‧‧ reference line

IC‧‧‧ imaging circle

Lc‧‧‧ chief ray

Lm‧‧‧ edge light

LE‧‧‧ long side

RT‧‧‧Inscribed rectangle

SE‧‧‧Short side

T1~T8‧‧‧ lens center thickness

1‧‧‧ optical imaging lens

2‧‧‧ object side

3‧‧‧ image side

4. I‧‧‧ optical axis

10‧‧‧ first lens

20‧‧‧second lens

30‧‧‧ third lens

40‧‧‧Fourth lens

50‧‧‧ fifth lens

60‧‧‧ sixth lens

70‧‧‧ seventh lens

8‧‧‧ eighth lens

80‧‧‧ aperture

90‧‧‧Filter

91‧‧‧ imaging surface

11, 21, 31, 41, 51, 61, 71, 81‧‧‧

12, 22, 32, 42, 52, 62, 72, 82‧‧‧ side

13, 14, 23, 24, 36, 37, 43, 44, 46, 47, 53', 54', 56', 57', 63, 64, 66, 67, 74', 76, 77, 83, 86 , 87‧‧ ‧ convex face

16, 17, 26, 27, 33, 34, 43', 47', 53, 54, 56, 57, 63', 64', 73, 74, 84‧‧ ‧ concave face

1 to 5 are schematic views showing a method of determining a curvature shape of an optical imaging lens of the present invention. 6 is a schematic view showing a first embodiment of the optical imaging lens of the present invention. Fig. 7A illustrates the longitudinal spherical aberration on the image plane of the first embodiment. Fig. 7B illustrates the astigmatic aberration in the sagittal direction of the first embodiment. Fig. 7C illustrates the astigmatic aberration in the meridional direction of the first embodiment. Fig. 7D illustrates the distortion aberration of the first embodiment. Figure 8 is a schematic view showing a second embodiment of the optical imaging lens of the present invention. Figure 9A illustrates the longitudinal spherical aberration on the image plane of the second embodiment. FIG. 9B illustrates the astigmatic aberration in the sagittal direction of the second embodiment. Fig. 9C illustrates the astigmatic aberration in the meridional direction of the second embodiment. Fig. 9D illustrates the distortion aberration of the second embodiment. Figure 10 is a schematic view showing a third embodiment of the optical imaging lens of the present invention. Figure 11A illustrates the longitudinal spherical aberration on the image plane of the third embodiment. Fig. 11B illustrates the astigmatic aberration in the sagittal direction of the third embodiment. Fig. 11C illustrates the astigmatic aberration in the meridional direction of the third embodiment. Fig. 11D illustrates the distortion aberration of the third embodiment. Figure 12 is a schematic view showing a fourth embodiment of the optical imaging lens of the present invention. Figure 13A illustrates the longitudinal spherical aberration on the image plane of the fourth embodiment. Fig. 13B illustrates the astigmatic aberration in the sagittal direction of the fourth embodiment. Fig. 13C illustrates the astigmatic aberration in the meridional direction of the fourth embodiment. Fig. 13D illustrates the distortion aberration of the fourth embodiment. Figure 14 is a schematic view showing a fifth embodiment of the optical imaging lens of the present invention. Figure 15A illustrates the longitudinal spherical aberration on the image plane of the fifth embodiment. Fig. 15B illustrates the astigmatic aberration in the sagittal direction of the fifth embodiment. Fig. 15C illustrates the astigmatic aberration in the meridional direction of the fifth embodiment. Fig. 15D illustrates the distortion aberration of the fifth embodiment. Figure 16 is a schematic view showing a sixth embodiment of the optical imaging lens of the present invention. Figure 17A illustrates the longitudinal spherical aberration on the image plane of the sixth embodiment. Fig. 17B illustrates the astigmatic aberration in the sagittal direction of the sixth embodiment. Fig. 17C shows the astigmatic aberration in the meridional direction of the sixth embodiment. Fig. 17D illustrates the distortion aberration of the sixth embodiment. Figure 18 is a schematic view showing a seventh embodiment of the optical imaging lens of the present invention. Figure 19A illustrates the longitudinal spherical aberration on the image plane of the seventh embodiment. Fig. 19B illustrates the astigmatic aberration in the sagittal direction of the seventh embodiment. Fig. 19C shows the astigmatic aberration in the tangential direction of the seventh embodiment. Fig. 19D illustrates the distortion aberration of the seventh embodiment. Figure 20 is a schematic view showing an eighth embodiment of the optical imaging lens of the present invention. Figure 21A illustrates the longitudinal spherical aberration on the image plane of the eighth embodiment. Fig. 21B shows the astigmatic aberration in the sagittal direction of the eighth embodiment. Fig. 21C shows the astigmatic aberration in the tangential direction of the eighth embodiment. Fig. 21D illustrates the distortion aberration of the eighth embodiment. Figure 22 is a schematic view showing a ninth embodiment of the optical imaging lens of the present invention. Figure 23A illustrates the longitudinal spherical aberration on the image plane of the ninth embodiment. Fig. 23B shows the astigmatic aberration in the sagittal direction of the ninth embodiment. Fig. 23C shows the astigmatic aberration in the tangential direction of the ninth embodiment. Fig. 23D illustrates the distortion aberration of the ninth embodiment. Figure 24 is a schematic view showing a tenth embodiment of the optical imaging lens of the present invention. Figure 25A illustrates the longitudinal spherical aberration on the image plane of the tenth embodiment. Fig. 25B shows the astigmatic aberration in the sagittal direction of the tenth embodiment. Fig. 25C shows the astigmatic aberration in the tangential direction of the tenth embodiment. Fig. 25D illustrates the distortion aberration of the tenth embodiment. Figure 26 is a schematic view showing an eleventh embodiment of the optical imaging lens of the present invention. Fig. 27A is a view showing the longitudinal spherical aberration on the image plane of the eleventh embodiment. Fig. 27B shows the astigmatic aberration in the sagittal direction of the eleventh embodiment. Fig. 27C shows the astigmatic aberration in the meridional direction of the eleventh embodiment. Fig. 27D shows the distortion aberration of the eleventh embodiment. Figure 28 is a schematic view showing a twelfth embodiment of the optical imaging lens of the present invention. Figure 29A illustrates the longitudinal spherical aberration on the image plane of the twelfth embodiment. Fig. 29B shows the astigmatic aberration in the sagittal direction of the twelfth embodiment. Fig. 29C shows the astigmatic aberration in the meridional direction of the twelfth embodiment. Fig. 29D illustrates the distortion aberration of the twelfth embodiment. Fig. 30 shows the detailed optical data of the first embodiment. Fig. 31 shows detailed aspherical data of the first embodiment. Fig. 32 shows detailed optical data of the second embodiment. Fig. 33 shows detailed aspherical data of the second embodiment. Fig. 34 shows detailed optical data of the third embodiment. Fig. 35 shows detailed aspherical data of the third embodiment. Fig. 36 shows detailed optical data of the fourth embodiment. Fig. 37 shows detailed aspherical data of the fourth embodiment. Fig. 38 shows detailed optical data of the fifth embodiment. Fig. 39 shows detailed aspherical data of the fifth embodiment. Fig. 40 shows detailed optical data of the sixth embodiment. Fig. 41 shows detailed aspherical data of the sixth embodiment. Fig. 42 shows detailed optical data of the seventh embodiment. Fig. 43 shows detailed aspherical data of the seventh embodiment. Fig. 44 shows detailed optical data of the eighth embodiment. Fig. 45 shows detailed aspherical data of the eighth embodiment. Fig. 46 shows detailed optical data of the ninth embodiment. Fig. 47 shows detailed aspherical data of the ninth embodiment. Fig. 48 shows detailed optical data of the tenth embodiment. Fig. 49 shows detailed aspherical data of the tenth embodiment. Fig. 50 shows detailed optical data of the eleventh embodiment. Fig. 51 shows detailed aspherical data of the eleventh embodiment. Fig. 52 shows detailed optical data of the twelfth embodiment. Fig. 53 shows detailed aspherical data of the twelfth embodiment. Fig. 54 shows important parameters of the first to fifth embodiments. Fig. 55 shows important parameters of the first to fifth embodiments. Fig. 56 shows important parameters of the sixth to twelfth embodiments. Fig. 57 shows important parameters of the sixth to twelfth embodiments. 58A and 58B are views for explaining an imaging circle and an inscribed rectangle and related parameters of the optical imaging lens of the embodiment of the present invention. Figure 59 is a schematic view showing a thirteenth embodiment of the optical imaging lens of the present invention. Figure 60A illustrates the longitudinal spherical aberration on the image plane of the thirteenth embodiment. Fig. 60B shows the astigmatic aberration in the sagittal direction of the thirteenth embodiment. Fig. 60C shows the astigmatic aberration in the meridional direction of the thirteenth embodiment. Fig. 60D illustrates the distortion aberration of the thirteenth embodiment. Figure 61 is a view showing a fourteenth embodiment of the optical imaging lens of the present invention. Fig. 62A is a view showing the longitudinal spherical aberration on the image plane of the fourteenth embodiment. Fig. 62B shows the astigmatic aberration in the sagittal direction of the fourteenth embodiment. Fig. 62C shows the astigmatic aberration in the meridional direction of the fourteenth embodiment. Fig. 62D illustrates the distortion aberration of the fourteenth embodiment. Figure 63 is a diagram showing a fifteenth embodiment of the optical imaging lens of the present invention. Figure 64A is a diagram showing the longitudinal spherical aberration on the image plane of the fifteenth embodiment. Fig. 64B shows the astigmatic aberration in the sagittal direction of the fifteenth embodiment. Fig. 64C shows the astigmatic aberration in the meridional direction of the fifteenth embodiment. Fig. 64D illustrates the distortion aberration of the fifteenth embodiment. Figure 65 is a diagram showing a sixteenth embodiment of the optical imaging lens of the present invention. Figure 66A shows the longitudinal spherical aberration on the image plane of the sixteenth embodiment. Fig. 66B shows the astigmatic aberration in the sagittal direction of the sixteenth embodiment. Fig. 66C shows the astigmatic aberration in the meridional direction of the sixteenth embodiment. Fig. 66D illustrates the distortion aberration of the sixteenth embodiment. Figure 67 is a diagram showing a seventeenth embodiment of the optical imaging lens of the present invention. Fig. 68A is a view showing the longitudinal spherical aberration on the image plane of the seventeenth embodiment. Fig. 68B shows the astigmatic aberration in the sagittal direction of the seventeenth embodiment. Fig. 68C shows the astigmatic aberration in the meridional direction of the seventeenth embodiment. Fig. 68D shows the distortion aberration of the seventeenth embodiment. Figure 69 is a diagram showing an eighteenth embodiment of the optical imaging lens of the present invention. Figure 70A illustrates the longitudinal spherical aberration on the image plane of the eighteenth embodiment. Fig. 70B shows the astigmatic aberration in the sagittal direction of the eighteenth embodiment. Fig. 70C shows the astigmatic aberration in the tangential direction of the eighteenth embodiment. Fig. 70D shows the distortion aberration of the eighteenth embodiment. Figure 71 is a schematic view showing a nineteenth embodiment of the optical imaging lens of the present invention. Figure 72A is a diagram showing the longitudinal spherical aberration on the image plane of the nineteenth embodiment. Fig. 72B shows the astigmatic aberration in the sagittal direction of the nineteenth embodiment. Fig. 72C shows the astigmatic aberration in the meridional direction of the nineteenth embodiment. Fig. 72D shows the distortion aberration of the nineteenth embodiment. Figure 73 is a diagram showing a twentieth embodiment of the optical imaging lens of the present invention. Figure 74A illustrates the longitudinal spherical aberration on the image plane of the twentieth embodiment. Fig. 74B shows the astigmatic aberration in the sagittal direction of the twentieth embodiment. Fig. 74C shows the astigmatic aberration in the tangential direction of the twentieth embodiment. Fig. 74D illustrates the distortion aberration of the twentieth embodiment. Figure 75 is a schematic view showing a twenty-first embodiment of the optical imaging lens of the present invention. Figure 76A illustrates the longitudinal spherical aberration on the image plane of the twenty-first embodiment. Fig. 76B shows the astigmatic aberration in the sagittal direction of the twenty-first embodiment. Fig. 76C shows the astigmatic aberration in the meridional direction of the twenty-first embodiment. Fig. 76D illustrates the distortion aberration of the twenty-first embodiment. Fig. 77 shows detailed optical data of the thirteenth embodiment. Fig. 78 shows detailed aspherical data of the thirteenth embodiment. Fig. 79 shows detailed optical data of the fourteenth embodiment. Fig. 80 shows detailed aspherical data of the fourteenth embodiment. Figure 81 shows the detailed optical data of the fifteenth embodiment. Fig. 82 shows detailed aspherical data of the fifteenth embodiment. Fig. 83 shows detailed optical data of the sixteenth embodiment. Fig. 84 shows detailed aspherical data of the sixteenth embodiment. Fig. 85 shows detailed optical data of the seventeenth embodiment. Fig. 86 shows detailed aspherical data of the seventeenth embodiment. Fig. 87 shows detailed optical data of the eighteenth embodiment. Fig. 88 shows detailed aspherical data of the eighteenth embodiment. Fig. 89 shows detailed optical data of the nineteenth embodiment. Fig. 90 shows detailed aspherical data of the nineteenth embodiment. Fig. 91 shows detailed optical data of the twentieth embodiment. Fig. 92 shows detailed aspherical data of the twentieth embodiment. Fig. 93 shows detailed optical data of the twenty-first embodiment. Fig. 94 shows detailed aspherical data of the twenty-first embodiment. Fig. 95 shows important parameters of the thirteenth to seventeenth embodiments. Fig. 96 shows important parameters of the thirteenth to seventeenth embodiments. Fig. 97 shows important parameters of the eighteenth to twenty-first embodiments. Fig. 98 shows important parameters of the eighteenth to twenty-first embodiments. 99 to 101 show the image height y, the half angle of view ω (in degrees), the half angle of view ω (in radians), and their corresponding points in the optical imaging lens 1 of the thirteenth to twenty-first embodiments. The correspondence between the values of y/(EFL*ω).

Claims (40)

An optical imaging lens comprising an object side, an image side and an optical axis, a first lens is a lens having a refractive index of the first piece from the object side to the image side, and a second lens is the object side a second lens having a refractive index to the image side, a third lens having a fourth lens having a refractive power from the image side to the object side, and a fourth lens being the image side to the The third side of the object has a lens having a refractive index, and a fifth lens is a lens having a refractive index of the second sheet from the image side to the object side, and a sixth lens is the image side to the object side Counting the first lens having a refractive index, and the first lens to the sixth lens each include an object side facing the object side and passing an imaging light, and facing the image side and passing an imaging light An image side surface, wherein the optical imaging lens satisfies the following features: the second lens has a negative refractive power, the object side of the second lens has a convex portion in the vicinity of the optical axis, and a convex surface having a region near the circumference The third lens is made of plastic, and the object side of the third lens a concave surface having a region near the optical axis; a side surface of the fourth lens having a convex portion in the vicinity of the optical axis; a side surface of the fifth lens having a concave portion in the vicinity of the circumference, the fifth lens a side surface of the image having a concave portion in the vicinity of the optical axis, and a concave portion having a region near the circumference; the image side of the sixth lens having a convex portion in the vicinity of the optical axis, and a convex portion having a region near the circumference Wherein G12 is the distance between the image side of the first lens and the object side of the second lens on the optical axis, and G34 is the image side of the third lens and the object side of the fourth lens The distance on the optical axis, T3 is defined as the center thickness of the third lens on the optical axis, and the EFL is defined as an effective focal length of the optical imaging lens, and satisfies the following condition: (G12+T3+G34)/EFL≤4.800 . An optical imaging lens comprising an object side, an image side and an optical axis, a first lens is a lens having a refractive index of the first piece from the object side to the image side, and a second lens is the object side a second lens having a refractive index to the image side, a third lens having a fourth lens having a refractive power from the image side to the object side, and a fourth lens being the image side to the The third side of the object has a lens having a refractive index, and a fifth lens is a lens having a refractive index of the second sheet from the image side to the object side, and a sixth lens is the image side to the object side Counting the first lens having a refractive index, and the first lens to the sixth lens each include an object side facing the object side and passing an imaging light, and facing the image side and passing an imaging light An image side surface, wherein the optical imaging lens satisfies the following features: the second lens has a negative refractive power, the object side of the second lens has a convex portion in the vicinity of the optical axis, and a convex surface having a region near the circumference The third lens is made of plastic, and the object side of the third lens a concave portion having a region in the vicinity of the optical axis, and the image side surface of the third lens has a convex portion in the vicinity of the optical axis; the object side surface of the fourth lens has a convex portion in the vicinity of the optical axis; The image side surface of the lens has a concave portion in the vicinity of the optical axis, and a concave portion having a region near the circumference; the image side of the sixth lens has a convex portion in the vicinity of the optical axis, and a region having a vicinity of the circumference a convex surface; wherein G12 is a distance between the image side of the first lens and the object side of the second lens on the optical axis, and G34 is the image side of the third lens and the object side of the fourth lens The distance on the optical axis, T3 is defined as the center thickness of the third lens on the optical axis, and the EFL is defined as an effective focal length of the optical imaging lens, and satisfies the following condition: (G12+T3+G34)/EFL ≤4.800. An optical imaging lens comprising an object side, an image side and an optical axis, a first lens is a lens having a refractive index of the first piece from the object side to the image side, and a second lens is the object side a second lens having a refractive index to the image side, a third lens having a fourth lens having a refractive power from the image side to the object side, and a fourth lens being the image side to the The third side of the object has a lens having a refractive index, and a fifth lens is a lens having a refractive index of the second sheet from the image side to the object side, and a sixth lens is the image side to the object side Counting the first lens having a refractive index, and the first lens to the sixth lens each include an object side facing the object side and passing an imaging light, and facing the image side and passing an imaging light An image side surface, wherein the optical imaging lens satisfies the following features: a side surface of the second lens having a convex portion in the vicinity of the optical axis, and a convex portion having a region near the circumference; the third lens is made of plastic The third lens has a positive refractive power, and the third lens a face having a concave portion in the vicinity of the optical axis; a side surface of the fourth lens having a convex portion in the vicinity of the optical axis; the image side of the fifth lens having a concave portion in the vicinity of the optical axis, and having a circumference a concave surface of the vicinity; the image side of the sixth lens has a convex portion in the vicinity of the optical axis, and a convex portion having a region near the circumference; wherein G12 is the image side of the first lens and the second The distance of the side of the lens on the optical axis, G34 is the distance between the image side of the third lens and the object side of the fourth lens on the optical axis, and T3 is the third lens on the optical axis The upper center thickness, EFL is an effective focal length of the optical imaging lens, and satisfies the following conditions: (G12+T3+G34)/EFL≤4.800. An optical imaging lens according to any one of the preceding claims, wherein the image side of the fourth lens and the object side of the fifth lens are on the optical axis. The distance T5 is the center thickness of the fifth lens on the optical axis, and G56 is the distance between the image side of the fifth lens and the object side of the sixth lens on the optical axis, and G23 is the second The distance between the image side of the lens and the object side of the third lens on the optical axis, AAG is the sum of G12, G23, G34.G45 and G56, and satisfies the following condition: AAG/(G34+G45+T5+ G56) ≤ 5.800. An optical imaging lens according to any one of claims 1 to 2, wherein T2 is a center thickness of the second lens on the optical axis, and G45 is the image of the fourth lens The distance between the side surface and the side surface of the fifth lens on the optical axis satisfies the following condition: (T2+G34+G45)/EFL≤1.700. An optical imaging lens according to any one of claims 1 to 2, wherein ALT is a sum of central thicknesses of the lenses having refractive power in the optical imaging lens on the optical axis, T6 is the center thickness of the sixth lens on the optical axis, and satisfies the following condition: ALT/T6 ≤ 4.300. An optical imaging lens according to any one of the preceding claims, wherein T1 is a center thickness of the first lens on the optical axis, and satisfies the following condition: G12/T1≤ 2.100. An optical imaging lens according to any one of claims 1 to 2, wherein T1 is a center thickness of the first lens on the optical axis, and T4 is the fourth lens at the light The center thickness on the shaft and satisfies the following conditions: (T1+T3)/T4≤2.700. An optical imaging lens according to any one of the preceding claims, wherein the BFL is the length of the image side of the sixth lens to an imaging surface on the optical axis, G23 is a distance between the image side surface of the second lens and the object side surface of the third lens on the optical axis, and satisfying the following condition: BFL/G23≤1.600. An optical imaging lens according to any one of claims 1 to 2, wherein T6 is a center thickness of the sixth lens on the optical axis, and G23 is the image of the second lens. The distance between the side surface and the side surface of the third lens on the optical axis, and G45 is the distance between the image side surface of the fourth lens and the object side surface of the fifth lens on the optical axis, and G56 is the fifth The distance between the image side surface of the lens and the object side surface of the sixth lens on the optical axis, AAG is the sum of G12, G23, G34, G45 and G56, and satisfies the following condition: AAG/T6 ≤ 2.500. An optical imaging lens according to any one of the first, second, and third aspects of the invention, wherein the following condition is more satisfied: T3/EFL≤1.400. An optical imaging lens according to any one of claims 1 to 2, wherein ALT is a sum of central thicknesses of the lenses having refractive power in the optical imaging lens on the optical axis, G23 is a distance between the image side surface of the second lens and the object side surface of the third lens on the optical axis, and satisfies the following condition: ALT/G23≤4.700. An optical imaging lens according to any one of the preceding claims, wherein the image side of the first lens and the object side of the second lens are on the optical axis. The distance T2 is the center thickness of the second lens on the optical axis, and satisfies the following condition: G12/(T2+G34+G45)≤1.400. An optical imaging lens according to any one of claims 1 to 2, wherein TL is the object side of the first lens to the image side of the sixth lens on the optical axis The distance T4 is the center thickness of the fourth lens on the optical axis, and the BFL is the length of the image side of the sixth lens to an imaging surface on the optical axis, and satisfies the following condition: TL / (T4 + BFL) ≤ 8.400. An optical imaging lens according to any one of the preceding claims, wherein the TTL is the length of the object side of the first lens to an imaging surface on the optical axis, G45 is a distance between the image side of the fourth lens and the object side of the fifth lens on the optical axis, T5 is a center thickness of the fifth lens on the optical axis, and G56 is the image side of the fifth lens The distance from the side of the object of the sixth lens on the optical axis satisfies the following condition: TTL / (T3 + G34 + G45 + T5 + G56) ≤ 6.500. An optical imaging lens according to any one of the preceding claims, wherein the image side of the second lens and the object side of the third lens are on the optical axis. G45 is the distance between the image side of the fourth lens and the object side of the fifth lens on the optical axis, and G56 is the image side of the fifth lens and the object side of the sixth lens The distance on the optical axis, AAG is the sum of G12, G23, G34, G45 and G56, and satisfies the following condition: AAG/G23 ≤ 2.300. An optical imaging lens according to any one of the preceding claims, wherein the image side of the fourth lens and the object side of the fifth lens are on the optical axis. The distance T5 is the center thickness of the fifth lens on the optical axis, and G56 is the distance between the image side of the fifth lens and the object side of the sixth lens on the optical axis, and satisfies the following conditions: (G34+G45+T5+G56)/EFL≤2.000. An optical imaging lens according to any one of claims 1 to 2, wherein T1 is a center thickness of the first lens on the optical axis, and T4 is the fourth lens at the light The center thickness on the shaft and meets the following conditions: (T1+G12)/T4≤2.200. The optical imaging lens of any one of the first, second, and third aspect of the invention, wherein TL is the object side of the first lens to the image side of the sixth lens on the optical axis The distance T2 is the center thickness of the second lens on the optical axis, and G45 is the distance between the image side of the fourth lens and the object side of the fifth lens on the optical axis, and satisfies the following condition: TL /(T2+G34+G45)≤12.100. An optical imaging lens according to any one of the preceding claims, wherein the BFL is the length of the image side of the sixth lens to an imaging surface on the optical axis, T6 is The center thickness of the sixth lens on the optical axis satisfies the following condition: BFL/T6 ≤ 1.600. An optical imaging lens comprising a first lens, a second lens, a third lens, an aperture, a fourth lens, a fifth lens and a first step from an object side to an image side along an optical axis a six lens, and the first lens to the sixth lens each include a side of the object facing the object side and passing the imaging light and an image side facing the image side and passing the imaging light, wherein the first lens is a first lens having a refractive power from the object side to the image side; the second lens is a second lens having a refractive power from the object side to the image side; the third lens is a third lens having a refractive power from the object side to the image side; the fourth lens is a first lens having a refractive power from the aperture to the image side; the fifth lens is a slave a second lens having a refractive power to the image side; the sixth lens is a third lens having a refractive power from the aperture to the image side, wherein one of the optical imaging lenses The imaging circle has an inscribed rectangle with an aspect ratio of 4:3, passing through a center of the imaging circle and flat A reference line running on any long side of the rectangle corresponds to an image of a viewing angle of 175° or more and less than or equal to 188°, and a pair of angles of the rectangle corresponds to an intake angle of 209° or more and 234° or less. An image in which the reference line extends from a short side of the rectangle to another short side of the rectangle, and the length of the reference line is equal to the length of any long side of the rectangle. The optical imaging lens of claim 21, wherein a ratio of a field of view corresponding to the angle of view corresponding to the angle of view to a field of view corresponding to the angle of view corresponding to the reference line is 1:0.8 . An optical imaging lens comprising a first lens, a second lens, a third lens, an aperture, a fourth lens, a fifth lens and a first step from an object side to an image side along an optical axis a six lens, and the first lens to the sixth lens each include a side of the object facing the object side and passing the imaging light and an image side facing the image side and passing the imaging light, wherein the first lens is a first lens having a refractive power from the object side to the image side; the second lens is a second lens having a refractive power from the object side to the image side; the third lens is a third lens having a refractive power from the object side to the image side, the third lens having a positive refractive power, and the object side surface of the third lens having a concave portion located in a region near the optical axis; The fourth lens is a first lens having a refractive power from the aperture to the image side; the fifth lens is a second lens having a refractive power from the aperture to the image side; The six lens is a third lens having a refractive power from the aperture to the image side, wherein An imaging circle of the optical imaging lens has an inscribed rectangle having an aspect ratio of 16:9, through a center of the imaging circle and a reference line of any long side of the rectangle correspondingly ingesting 176° or more An image having a viewing angle of less than or equal to 201°, and a pair of diagonal lines of the rectangle corresponding to an image of a viewing angle greater than or equal to 205° and less than or equal to 232°, wherein the reference line extends from a short side of the rectangle to another of the rectangle The short side, and the length of the reference line is equal to the length of any long side of the rectangle. The optical imaging lens of claim 21 or 23, wherein the optical imaging lens satisfies the following conditional formula: 0.900 ≦ y / (EFL * ω) ≦ 1.300, wherein EFL is a system focal length of the optical imaging lens , ω is one of the half angles of view of the optical imaging lens taking in different angles, and y is one of the image heights corresponding to the half angle of view. The optical imaging lens of claim 21, wherein the optical imaging lens satisfies the following conditional formula: 3.500 ≦ (V1 + V2) / V3 ≦ 6.000, wherein V1 is one of the first lenses Abbe's coefficient, V2 is an Abbe's coefficient of the second lens, and V3 is an Abbe's coefficient of the third lens. The optical imaging lens according to claim 21, wherein the optical imaging lens satisfies the following conditional formula: TL/ALT ≦ 1.820, wherein TL is the object side of the first lens to the sixth The image side of the lens is a distance on the optical axis, and ALT is the sum of a central thickness of the lens having all of the refractive power on the optical axis. The optical imaging lens according to claim 21, wherein the optical imaging lens satisfies the following conditional formula: (EFL+AAG+BFL)/ALT≦1.500, and the EFL is a system focal length of the optical imaging lens. The AAG is a distance between the first lens and the second lens on the optical axis, a distance between the second lens and the third lens on the optical axis, the third lens and the fourth a distance between the lenses on the optical axis, a distance between the fourth lens and the fifth lens on the optical axis, and a distance between the fifth lens and the sixth lens on the optical axis A sum of distances, BFL is the length of the image side of the sixth lens to an imaging surface on the optical axis, and ALT is the sum of thicknesses of all lenses having refractive power on the optical axis. The optical imaging lens according to claim 21, wherein the optical imaging lens satisfies the following conditional formula: (G12+G45+T5+G56)/T1≦3.500, and G12 is the first lens and the a distance between the second lens on the optical axis, G45 is a distance between the fourth lens and the fifth lens on the optical axis, and T5 is a center of the fifth lens on the optical axis The thickness, G56 is a distance between the fifth lens and the sixth lens on the optical axis, and T1 is a center thickness of the first lens on the optical axis. The optical imaging lens according to claim 21, wherein the optical imaging lens satisfies the following conditional formula: (G45+G56+T5+T6)/G23≦2.900, and G45 is the fourth lens and the a distance between the fifth lens on the optical axis, G56 is a distance between the fifth lens and the sixth lens on the optical axis, and T5 is a thickness of the fifth lens on the optical axis , T6 is a thickness of the sixth lens on the optical axis, and G23 is a distance between the second lens and the third lens on the optical axis. The optical imaging lens according to claim 21, wherein the optical imaging lens satisfies the following conditional formula: (G34+G45+T4+T5)/T1≦4.300, and G34 is the third lens and the a distance between the fourth lens on the optical axis, G45 is a distance between the fourth lens and the fifth lens on the optical axis, and T4 is a center of the fourth lens on the optical axis The thickness, T5 is a center thickness of the fifth lens on the optical axis, and T1 is a center thickness of the first lens on the optical axis. The optical imaging lens according to claim 21 or 23, wherein the optical imaging lens satisfies the following conditional formula: (G34+G45+T3+T6)/T2≦10.400, and G34 is the third lens and the a distance between the fourth lens on the optical axis, G45 is a distance between the fourth lens and the fifth lens on the optical axis, and T3 is a center of the third lens on the optical axis The thickness, T6 is a center thickness of the sixth lens on the optical axis, and T2 is a center thickness of the second lens on the optical axis. The optical imaging lens according to claim 21, wherein the optical imaging lens satisfies the following conditional formula: (G23+G34+G45+T5)/T1≦7.300, and G23 is the second lens and the a distance between the third lens on the optical axis, G34 is a distance between the third lens and the fourth lens on the optical axis, and G45 is between the fourth lens and the fifth lens A distance on the optical axis, T5 is a center thickness of the fifth lens on the optical axis, and T1 is a center thickness of the first lens on the optical axis. The optical imaging lens of claim 21, wherein the optical imaging lens satisfies the following conditional formula: 3.500 ≦ (V1 + V4) / V3 ≦ 6.000, and V1 is an Abbe of the first lens. The coefficient, V4 is an Abbe coefficient of the fourth lens, and V3 is an Abbe coefficient of the third lens. The optical imaging lens of claim 21, wherein the optical imaging lens satisfies the following condition: TTL/ALT ≦ 2.500, TTL is the side of the first lens to an imaging surface A distance on the optical axis, and ALT is the sum of a central thickness of the lens with all refractive power on the optical axis. The optical imaging lens according to claim 21, wherein the optical imaging lens satisfies the following conditional formula: (EFL*Fno+T4)/ImgH≦2.100, and the EFL is a system focal length of the optical imaging lens. Fno is the aperture value of the optical imaging lens, T4 is a center thickness of the fourth lens on the optical axis, and ImgH is a maximum image height of the optical imaging lens. The optical imaging lens according to claim 21, wherein the optical imaging lens satisfies the following conditional formula: (G12+G45+T5+G56)/T4≦6.100, and G12 is the first lens and the a distance between the second lens on the optical axis, G45 is a distance between the fourth lens and the fifth lens on the optical axis, and T5 is a center of the fifth lens on the optical axis The thickness, G56 is a distance between the fifth lens and the sixth lens on the optical axis, and T4 is a center thickness of the fourth lens on the optical axis. The optical imaging lens according to claim 21, wherein the optical imaging lens satisfies the following conditional formula: (G45+G56+T4+T6)/G23≦3.300, and G45 is the fourth lens and the a distance between the fifth lens on the optical axis, G56 is a distance between the fifth lens and the sixth lens on the optical axis, and T4 is a center of the fourth lens on the optical axis The thickness, T6 is a center thickness of the sixth lens on the optical axis, and G23 is a distance between the second lens and the third lens on the optical axis. The optical imaging lens according to claim 21, wherein the optical imaging lens satisfies the following conditional formula: (G34+G45+T3+T6)/T1≦6.500, and G34 is the third lens and the a distance between the fourth lens on the optical axis, G45 is a distance between the fourth lens and the fifth lens on the optical axis, and T3 is a center of the third lens on the optical axis The thickness, T6 is a center thickness of the sixth lens on the optical axis, and T1 is a center thickness of the first lens on the optical axis. The optical imaging lens according to claim 21 or 23, wherein the optical imaging lens satisfies the following conditional formula: (G34+G45+T4+T5)/T2≦6.850, and G34 is the third lens and the a distance between the fourth lens on the optical axis, G45 is a distance between the fourth lens and the fifth lens on the optical axis, and T4 is a center of the fourth lens on the optical axis a thickness, T5 is a center thickness of the fifth lens on the optical axis, and T2 is a center thickness of the second lens on the optical axis The optical imaging lens according to claim 21, wherein the optical imaging lens satisfies the following conditional formula: (G23+G34+G45+T6)/T1≦10.000, and G23 is the second lens and the a distance between the third lens on the optical axis, G34 is a distance between the third lens and the fourth lens on the optical axis, and G45 is between the fourth lens and the fifth lens A distance on the optical axis, T6 is a center thickness of the sixth lens on the optical axis, and T1 is a center thickness of the first lens on the optical axis.